Mass Effect 3 - Wrex Stimulant Pack - several Bugs/Issues

The "Stimulant Pack" Skill ignores the gameplay setting "Squad Power Use" set to off. Thus Wrex shreds a grenade count of 7 to 0 within a few seconds - every time combat starts. In addition, this renders his lift grenade skill completely useless as both skills share the same grenade pool.

Ignoring the gameplaysetting is a bug, wasting all of his grenades surely is a bug, leaving him with two useless skills. As Wrex has already three points in Stimulant Pack the first time we meet him, and his powers can't be reset, there is no way to circumvent these issues by resetting and not adding any powers in this useless skill.

Suggestion:

Don't let Wrex use Stimulant Pack while Squad Power Use is set to off and replace grenades with a cooldown for stimulant pack.

@EA_Mako  This is an old bug from legacy, but perhaps it can be looked into as it severely restrict Wrex capabilities.