I honestly don't understand how guys are expected to defend screens nowadays. The screener is allowed to block like an offensive tackle while defenders get whistled for slight contact.
Wish they'd rebalance the rules in that part of the game - or just call moving screens the way they're supposed to be called. Unfortunately there isn't much incentive for the NBA to make a change that would lower scores. These 30, 40, 50, 60 point games that players hang up nowadays are very marketable.