This is a great little set of alterations.
The bonus to force aura is for the better. Defensive buffs are generally less useful than attack buffs and this evens things out.
Changing speed/wookiee rage to an attack bonus rather than extra attacks is for the better. Extra attacks were too good, especially at higher levels.
Force kill did too much damage. Also good.
Force crush, same story. Removing the animation on a passed save is another good tweak.
I think it was fine for destroy droid to do as much damage as it did. It's a more circumstantial power that doesn't work on a lot of foes. OTOH, the debuff is consistent with force lightning's debuff.
I liked the blur effect on force speed, but recognize that a lot of people didn't.
Solid gameplay tweak.