If a guy wearing good armor, waving a sword, axe or similar like he knows how to use it, with the physique to back up the threat, gets in your face, then calling it the "evil eye" is a kind of missing the point. I guess from a particularly odd point of view, that is a kind of mind control. Yeah, the guy is probably getting in your head a bit. But even if you are totally collected and not letting any head games happen, you'd have to acknowledge, "pay some attention to me or pay the consequences, your choice".
Now, in reality, you perfectly free to say, "Whatever, I'm not afraid of you," and go smack someone else. It's merely that when you tried that, the hit you took would be far worse than what 4E lets the fighter deal out. So if you want to add to marking something like the ability to ignore the mark in return for risking much greater damage, I'd be fine with that. To keep it simple, they decided that most people would rarely want to make that choice, though.
I can't even comprehend the kind of mindset that thinks marking is somehow out of place or immersion destroying or mind control or whatever objection we have this week, but thinks that completely ignoring a highly trained, heavily armed opponent is realistic. And then on top of that, the poor guy is dinged for being a "defender" when he "should be hitting people hard", and the first thing they want to get rid of is one of his best ways for hitting people hard. You'd almost suspect that someone had no idea how 4E or realistic combat actually worked, but rather had some stylized view of combat derived from earlier games that isn't being shared clearly.