[Zuul]

Well the only abilities we have (that I know of) that require us to be behind the mob is Phantasmal Blade and Harrow. Harrow's got a cool down of it's own so you couldn't do it twice, and PB is only usable out of combat.

I don't see this Return Step ability as overpowering, but I also don't really see it as necessary. It would be really helpful for making PB more useful though, as it is now it just confuses people in PUGs, my normal groupmates know about it and understand what's going on, but PUGs just don't get it. As for SS/Harrow changing the facing of the mob, i usually just run through it first, then SS, that way it's only facing the wrong way for a split second (same as it would be if we had a Return Step ability).