This seems problematic, if anything I'd rather have had it cast much quicker, instead of having a long cast time. Now it's probably going to be spammed a lot with Macha and that's problematic.
If Macha doesn't throw her spear and uses her W ability, the quick strike comes out incredibly fast, almost as fast as assault leap, the damage stacks with every squad and on top of that they get can get damage resistance, and probably close to their shield requirement for their new doctrine change. You can wipe huge blobs on infantry with this with little risk and that's not healthy, just like assault leap pre-nerf was.
This needs to be looked at.