Changing blitzcrank's movement would make him unrecognizable?

I get it that there's a limit to how much you can change. But his W animation already has a floating one while on the regular skin it's just the same as walking but with speed lines behind him. Couldn't you just make it the same way in the skins where you use the W animation for the basic walk and at speed lines and lighting up the gas pipes with W?

If changing his base walk is too confusing, why is changing his W walk okay? When he comes at you, it's usually with W activated anyways. The only problem imo is to distinguish normal walk from sped up walk, but I think it wouldn't be hard to make it as clear as it is in base skin. Just make more steam come out of him, etc.