Were we Too harsh on Mass Effect Andreomda???

Not exactly crap, but they're "ok" for next gen, at best. There are games from last year with equal (if not superior) graphics. The difference is these games from last year demand FAR LESS from your PC to deliver those graphics (and they have facial expressions!) 

That's subjective. Believe it or not, people can have different opinions and likes than you and be equally right when it comes to entertainment. 

I found the intro to the witcher 3 so boring and unengaging, that coupled with its complete arse combat (a hangover from the 2nd one) I gave up after a few hours.

And I'm a Bioware fan too. I love all Dragon Age games, I love the Mass Effect trilogy, I love KOTOR. But comparing The Witcher 3 to Mass Effect: Andromeda is just laughable. 

The only similarity they have is that they both as Triple A games set standards
But The Witcher 3 sets standards of how good we want a game to be (hey, is that game as good as TW3?)
And ME:A sets standard of how bad a game can be (is that game as bad and glitchy as Mass Effect Andromeda?)

Yes, it explains I found a better use of my time.

To put it kinda blunt:

EA should have kept the ME Turkey in the oven until Golden Brown.

As it stands, we got a mishmash, a Cthuken.

The difference is I haven't registered on the cdpr forums and spent my sad little life endlessly spamming them about how the game is the worst thing ever, making out that my opinion is some form of fact.

Oh and the other difference is, of course, I have actually bought that game so can always go back and try again at my leisure.

Yes and no.
I was honest with the game, I liked things but was totally disappointed by many others. I'm sorry but the game should have been released NOW, not 4 months ago. It's far too simple to say that the community was harsh when the game is now mainly fixed technically speaking. I played day one, like many others, I paid the game full price for an unfinished work (unacceptable!), and yes, I was disppointed. It was not only because of the animations (now mainly fixed it seems), CC (now a bit better), and how they promised us so many explorable planets, like 100... and then 30... and finally we got 7 (I don't count Aya, a town is not a planet...), it was mainly because of all the bugs and all the crashes I had *How to ruin a game experience...*

So writting bad stuff for writting bad stuff is totally stupid. Sadly, some people have a passion for it.
Also there's a polite way to criticize a product.

But many constructive and negative opinions I read were totally justified. And it's not because I like a video game company that I will blindly accept everything they do, especially when I know how good and creative their games usually are.

Then in my opinion, you have bad taste in RPG's.  If a game can't hook you in 10 hours, and does everything it possibly can to make you loathe it, it's not worth another 90.  And this seems to be the consensus, as the studio responsible for this mess, is seemingly finished.  No DLC for you!

You miss my point.  About both games.  See I love the Witcher 3.  I love Andromeda.  But this time playing the Witcher 3 I had a horrible time getting into it for roughly my first week and a half.  The side quests were dull, the leveling in the game was making it really tedious, bugs and glitches that make Andromeda look like a verrrryyy stable game were sucking me right of the experience.  But, I persevered because I remembered my first time playing the game.  And sure enough once I got to Novigrad the game has gone back to being quite awesome.  buggy as hell though.  

But the point is I wait games out.  And the point is if I treated Witcher 3 like you treated Andromeda I would have missed out on one of the best gaming experiences out there (though not as good as the one Andromeda provided but that, is purely opininion)

How was the marketing deceptive?  

A. as much as it may pain me to admit there hardly was any marketing, at least not till the last few weeks before the game came out.  
B. Many people at the time pointed out that the game looked buggy and the animations were wonky, that BioWare did not go out of their way to pretty things up, like most companies. 

That's typical marketing from them from what I've seen, not that I excuse it.