Has anybody noticed that the skill Vault frequently gets stuck on stairs and on edges?

For a good reference, check out Forces "Diablo 3 beta Let's play demon hunter" video on youtube.

I can see this being the end of a few hardcore characters as they try to defensively vault away in later game, but get stuck on stairs/minor corner.

If I could be so arrogant to offer an alternative, what if vault was in a straight line but followed the cursor? Also if it could go up and down stairs it would be a much more valuable asset?

Your thoughts?