So, what about that Elezen walk/Jogg rework?

[Iscah]

It being race locked makes no sense when every race is just a different flavor of human.

Different-shaped flavours of human are going to run differently. But in any case it would primarily a choice for minimising how much data needs to be sent. Other players' computers just need to know your race and that tells it which animations to use as well as which model to display. If you could choose, then it needs to be told that separately.