A new Patch but no Machinist adjustments.

[Raikai]

This game doesn't have the tech to animate separate parts of the body independently, like so many games have managed. You see it when performing any attack while moving; the character just slides around.
If you could move while maintaining a several-second long ability, it would look completely ridiculous. Frankly, we're pretty lucky most abilities don't lock the player down.
The problem is that a long ability like that even exists. Especially with how hilariously weak it is. People only use it to force overheat, so it may as well just be a quick burst attack which overheats instantly.

Wait... Ugh, I can't believe that is the actual reason.