This is 100% my feeling - like it was cut content; the fact that Rough Divide was turned into essentially a "slight squat and essentially you slide on the ground" versus the original animation (stolen from machinist) feels....REALLY wrong. the DRK engage is even less interesting and I don't really even understand why they needed to change it aside from "we didn't want it to look like an attack since they now do no damage".
simple suggestions
GNB - make them do a two handed run toward the boss ala Squall v Siefer FF 8 animation; or hell make them jump if you don't want them "running really fast"
DRK - Use the Shadow beast shadow cast animation - shadow line on ground and you pop out at the end infront of the target.
The current animations are really not animations; just VFX on a static character.
