If he could have given the receiver wider berth, but OBVIOUSLY tried to run by close. You can't look at people's actions and make judgement calls on their intent?
Yes, you can, but what I am saying is that the rule doesn't focus on intent. It focuses on whether the receiver has an unimpeded opportunity to catch the ball.
If a kicking team player trips and stumbles into the receiver before he can make the catch, the receiver did not have an unimpeded opportunity to catch the ball. It doesn't matter that the offender didn't intend to cause interference.
So why would you apply the unimpeded opportunity rule differently when the interference is non-contact interference? Either the receiver had an unimpeded opportunity or he did not; the fact that the kicking team player misjudged his speed, but didn't intend to get too close to the player, is irrelevant. The fact that the kicking team player stutter steps and tries to change his direction of movement is irrelevant to the question at hand: did his actions, intentional or not, cause interference?
Either he made contact or he didn't; either he came too close or he didn't; either interference was caused or it wasn't. I don't think it has anything to do with the player's intent to cause interference. The question is simply whether interference was present.
I'd agree that, in non-contact situations, it is a judgment call, but the judgment to be made is not in relation to the player's intent. Rather, the judgment to be made is whether interference occurred.