Native animations are perfect, please don't touch anymore. If you don't believe me, fire up native go to duel server and enjoy fluidity of motion Great Sword has. It is a joy to play with it.
Animation you've cooked up is very effective because it can be spammed but it feels and looks awful.
Warband animations aren't broken that's for sure. I have feeling if they were to replace them all with *improved* animations, this mod would feel like War of the Roses.
Define broken?
From my point of view, any animation with clipping or weird unrealistic movements are broken.
I know my replacement for the 2h stab isn't perfect, and I'll continue to work on it. (focusing on improving sweetspot and fluidity)
But the old animation was just plain broken, a relic that somehow got missed when they replaced the others. (There is actually a similar animation to the one I made in human_anims, skeletons.brf in common resources; didn't see it at the time I made mine, or I would have improved that one)
It was a very basic animation, very few frames with tonnes of clipping.
There are other animations like this, and plenty of other cool stuff we can do with more animations.
I agree native is fluid, but it's far from perfect.