I agree. For instance, i miss Power Slash (I think it was called) Quite a lot. Like wtf, if you're a DRK at lvl 80 your character is jumping every 6 seconds because the souleater animation is dumb - You're wearing heavy armour with one of the biggest equippable weapons in the game and 1/3rd of your main skill set has more jumping in it than NIN or MNK xD

One way they could do it would similar to egi glamours, for example.
So many old animations are going unused...