* Power Ranks Don't Affect Combo Damage *

Combos aren't meant to be strong because powers are on separate cooldowns now. Combos are far easier to perform now. For example, Asari Sentinel can detonate an ammo power with Energy Drain and immediately detonate that ED with Throw all in the span of 1 second. In ME3, that's an instant kill on everything weaker than a Brute in an AoE. Not to mention, that's with any cooldown penalty. It's part of the reason why combat powers and especially grenade/cell powers don't detonate anymore.

They don't want that playstyle of running around and nuking spawns. It undermines the entire game and all the unique mechanics they put into enemies that can't survive that initial nuke. It makes run and gun offense the overwhelmingly better option in almost every situation in ME3. It's a huge reason why Platinum is essentially just boss spam instead of something actually coherent and challenging.

How often did anyone use Justicar's bubble outside of preference? How often would you use a similar power in MEAmp? Flip that around, and think of Barricade. In MEAmp, it has a distinct niche. If ME3 had barricade, it'd be utterly pointless outside of goofing around.

We really ought to stop comparing ME3 and MEA 1:1. I don't want to be that guy that screams 'they're totally different games!' but even slight changes such as powers being on separate cooldown throws a huge curveball into the design of the game. You can't change something like that without effecting everything else at the basic level.

I literally addressed this in the post you quoted. And what power has a 20 second cooldown?

It's part of the reason why combat powers and especially grenade/cell powers don't detonate anymore.

Grenades in ME3 never detonated combos ( lift grenades and inferno may have primed ) and in MEA you can spec concussive shot as a cell based power detonating stuff.

QED?

I never knew all of the reasons. I just know that I refuse to play power based characters in this game after playing it for the first 2 days. This is probably a big part of that reason. I remember being so pumped for the Krogan Engineer hahaha.

Multiplayer and the whole combat system is worse than ME3 i especially dislike the absurdly long cooldowns on some powers. It is so bad that i end up saving my powers for some tougher situations and end up not using them at all because of the better save this power till i really need it mentality.
Also the guns are so weak and the combos are worse.
They removed the best primers (warp and reave) from the game and made solo triggered biotic explosions much harder to achieve. In ME3 i barely played SP in the first month after launch this time arround its 10 h MP and 70 h SP. ME3 you had asari adept that was gold viable without any fancy weapons from day one in Andromeda i look at the power sets and it looks like they intentionally made all of the starting characters bad, well i guess infiltrators have advantage in cloak but again stupid cooldowns mean i spend most of my time uncloaked.
If this was done by the same team that made ME3 MP it must mean that the people with good ideas have left the company.

Grenades in ME3 never detonated combos ( lift grenades and inferno may have primed ) and in MEA you can spec concussive shot as a cell based power detonating stuff.

QED?

Edit: Scrubbed for being a scrub. I totally forgot about Clustergrenades.

Are you certain?  I don't recall ever detonating a tech burst with Throw to use your example.  Then again, it could have been an ammo interfering with the detonation but I find it hard to believe I never caught on that biotic powers detonated tech and vice versa.