I mean if someone REALLY wants to change their pick after the draft, I think we can make an exception.
But the idea behind this was to choose a player you love based on his/her attributes, abilities, and story. It wasn't to choose someone just because he's going to a place where he'll get plenty of playing time.
Also there is some truth in that a GREAT player will succeed wherever he goes.
But yeah again, if someone really wants to change a pick due to an adverse situation I think people would understand.
Yeah, it's really not that serious.