What's with all the Irelia E hate?
I'm an Irelia main, so perhaps what I'm going to say is really bias, but hear me out.
Why do people complain about the fact that Irelia's E "Punishes you for winning a trade"?
There are champions out there who can stun you regardless of other circumstances. Taric, Udyr, ect.
If they flipped it around so she can only stun you when she's winning the trade (she has more HP than you) It would just let her snow ball trades, and she might as well just have it be an unconditional stun anyway (Since slowing an Enemy when you're losing the trade is pretty pointless)
As it is now, her E gives her the opportunity to turn a fight that she's losing, and stick to fleeing enemies if she's winning.
If it got flipped, it would just let her dominate a trade she's already winning (And make it much harder for you to escape if you're losing) while being rather ineffective as far as CC goes if she herself is losing the trade.