The NBA reaction will be interesting. The league has under Adam Silver tried to portray itself as this socially progressive entity. While it gets paid lip service, not everyone drawing a paycheck from the league may be on board with that.
In the case of Cuban - he's been one of their best owners when it comes to marketing the product and showing other owners how you operate a team. He's also one of their best known owners and a guy who a lot of people admire. This puts the NBA in a tough spot.
It also involves a guy, Cuban, who's very smart and very likely to put up a fight if they try to penalize him in a manner that he thinks is unfair to him.