I referee many AAU ballgames & that is one thing that my partner and I talk about as well. It doesn't mean that we WON'T make a call at the end of a close game, but it's going to have to be quite obvious.
NOW we're finally getting somewhere. How is it so hard to see that the referees took the same approach as you employ and left the questionable charge/block call as a no call because they wanted to let the players play it out? How is it so hard to see that they finally did make a call on Niang on the foul across Johnson's arms only because it was obvious? You said yourself that this is the very same approach you take in your job as a referee.
I would love for some ISU fan to give me a reasonable explanation for my one big question in all of this...if there was some huge conspiracy by the refs to give that game to Kansas, why didn't they just call a block on Niang and send Johnson to the line?
Do people really think that the referees missed this easy chance to put the fix in and instead chose to rely on the ball coming of the rim, being grabbed momentarily by Jeff Withey only to have it knocked out of his hands and fall to the floor where both Niang and Johnson were piled in a heap, have Johnson somehow grab the ball and THEN call a foul?!? If those guys were trying to fix the game then they really SUCK at it.