You made use of them. That doesn't mean that they're useful. You always had alternatives in killing them with only health remaining.
Your vids are great, don't get me wrong. But they don't prove that throw, warp, and shockwave are useful. They merely show that they can be used.
Look at Gatsby's videos. They prove that you don't need those powers at all.
I have found, that health is actually the slowest to take damage.
I realize many may think I'm crazy, or what not, but without something like shedder ammo, or a bonus to health damage, it is actually the hardest to take down.
The reason I think this gets confused, is that a lot of large enemies don't actually have any health; Harbingers and Scions come to mind.
With health only though, I find pull/throw to be probably the fastest means to and end.
Also, warp alone does not deal very good damage at all, unless it's something that is weak to it (barrier etc). It is definitely not the best method on pure health, unless in combo with singularity.
I agree to a point you don't need powers to an extent.
On the suicide mission, if you want to keep the person in the vents alive, on insanity you need to be extremely fast.
You do not have the time to deal with multiple harbingers and the like. They need to die fast, and surprisingly pull/throws with a single harbinger held in singularity is probably the fastest.
This also goes for the platform battle, the scion battles, and the final battle.
If you are not extremely efficient in removing the drones, you can easily get overwhelmed with harbingers and their ilk.
I look at adept this way;
It has pretty much the best of everything, except a few points.
No, it doesn't get cloak, adrenaline, etc, but you can easily have all the ammo powers and such from your squad. That leaves only the class specific powers to contest, and I find adepts aresenal much superior in this regard.
I think we're all going to have to agree to disagree, as all sides are very entrenched and are not wavering.