Wow, Moshae surprises me

The choice is weird. I've only played the story completely once, but I was on Jaal's side. Hell yeah let's save everyone and bomb the thing later in an hour - or plant a bomb with a timer rigged to go off. Is the facility going somewhere?

So this time, I destroyed it and Jaal was pissed and the Moshae was happy, but I don't know what the rush was.

Don't think going back would be an option. They weren't expecting the attack, and they had reinforcements coming in that would crush them had they stayed much longer. The initiative isn't a military power regardless if they're own tech is actually better, and the Amhara are so divided they're not a threat either. That first chance would most likely be the only chance since they had the advantage of stealth.

i myself saved the Angarra, damn the facility as I was right that they had other means of Exaltation besides that one facility. They may not produce in mass anymore, but they could still take powerful individuals (like the pathfinder).

That's assuming the kett, and the Archon, aren't idiots.

I don't see how either choice in the end matters much. There is no way this is the ONLY exaltation facility they have. Their whole point in coming to Heleus was to exalt the whole cluster, they are really going to do it all from this one base? No, they would need bases like that all over the cluster. Taking down this one might slow them down in that region of Voeld, for the time being, but they would just route Angara from there to another facility.

This (exaltation) is what they do, they would have mastered the process of setting up and tearing down bases like this out of necessity over time as they exalted other species all across Andromeda.

Keep in mind the Angara philosophy regrading their war against the Kett, it boils down "Death before giving up anything to the Kett", all Angara apparently agree with this sentiment, I've noted a couple of dialogues relating to this; "Kett want to capture us alive, so we fight to the death"; "No one joins the resistance to stay safe"

Is that the resistance philosophy or all angara?

I just wonder if Jaal argues to save them all because he hopes that his brother and sister-in-law are there. I mean they, along with his father, were all taken by the kett. 

Seemed damn important to the Ascendant kett that basically begged you to not blow it up. That, if you ask me, is far more telling. I don't think it was for sentimental reasons. They don't seem sentimental at all. Logic dictates that if it were easy to rebuild and they didn't consider it a loss that kett would have laughed at you much the way the rest of the ascendants and Archon do right up until you fuck their shit up.  If they had so many other facilities and it weren't about to be a huge loss them, that kett would not care. The argument would be much different, along the lines of 'go ahead and destroy it. You'll barely slow us down. We have more. We can build more. Blah blah blah' because that is basically what all the kett that speak any thing remotely intelligible do. Maybe they do have other facilities but I doubt they have many. The most important thing is that it's just one more way to slow them and  beat them. If you are killing kett and they keep replacing them with relative ease, it is a never ending war that the kett can win (which they had been until you come along).  If you keep killing troops and cut off a key supply for more troops,  you have just shifted the things toward your favor. Any base you destroy is one less place they have to make more kett. And I kind of think that the collateral damage of angara dying actually works in your favor because they have to look through them to find ones to exalt. Plenty don't make the cut. You just indirectly took a good supply from them. 

More importantly, every angara I am sure would rather die than be exalted. You did them a favor in the long run. The resistance fighters will fight to the death so this is not entirely different. They'd been dead anyway, brainwashed to fight against their families.

Agreed. Entirely agreed.

Edit: But I will say it is one of the more interesting things to discuss about the writing or story. There's not much there for interesting and intelligent discussions. Oh how  I miss the days of gazillion page long thread about logain - traitor or hero

I dunno.  As soon as they said "blow the base and the Angara die" it stopped becoming a choice to me.  Whether the Kett can rebuild the base or not, whether they can do exaltation somewhere else or not, are all things beyond my/Ryder's control at that moment in time.  All you really know for certain is, if you blow that base you are murdering hundreds of Angara.  Not the Kett, not some exaltation machine, not some far off unknowable possibility, you right in that moment are killing those Angara.  To me it wasn't even a choice.

As far as how the Kett are written, I'm half expecting to find out the Archon's boss was Cobra Commander at this point.  They are that bad.

Edit: And I'm right there with you on Logain, and a number of choices from the older games.  Especially DAO I had many times where I had to stop and consider what choices I really wanted to make.

It's essentially the Collector base decision all over again, thankfully without a "won't let fear change me" line as its capper.