I was just drawing off seeing you comment in the golf forum; I don't really find men's leagues comparable to what we are talking about, no matter the sport. The article has quotes from player(s) saying it's part of the game, except when crossing lines. Beyond that, it seems like a puff piece, but I'm cynical on anything progressive with the NFL.
To your end, it's an empty comparison, since he didn't call him the equivalent of N****r, since, well yeah, there isn't an equivalent to call white people. (Which is what I think Kliq's point is in part.)
To your hypothetical do I think it's likely? No. Appropriate? I really don't know nor do I think I have a say in it.
Again, we're reading his lips on a Twitter video to discern he called Luka a "bitch ass white boy". Trying to compare it to dropping an N bomb is pretty ludicrous. If he had chosen Slovakia instead of skin color to attack, is that ok? Calling for his head is absurd.