Obviously, we can't hear what the coaches are saying to the officals during TV games but I can't imagine that they're yelling about how great the calls are!
Also, there were several situations, on both ends of the floor, where subs and coaches were jumping off the bench when they didn't like a call, when they were signaling violations, or they were waving towels at the officials.
Crap like that trickles down to high school.