No Mileenas roll should NOT be a low... It's versatile enough as it is. Anti-air, interrupt, combo starter, fast way to cross the screen at max distance, OTG setups, etc. when you consider that U4 would be free everytime and she'd get free throws after every string due to an unseeable low popup, it becomes a bit much.
But to all you guys saying "Did you see EVO? REO blah blah blah" Just stop. Please.
Now granted, I don't think Mileena is in need of any serious buffing, but do not judge the character off of one guy's (almost) success at EVO. Unless the next patch makes everyone else around her better, she's perfectly capable as is. But to pretend that REO won all his matches on pure skill and character ability; refusing to acknowledge that many of his opponents had absolutely no anti-Mileena is just naive. Dear God, imagine if REO won EVO... we'd be hearing how she's top tier and has no flaws and needs a nerf.