I think the NBA just wants to make a rivalry out of them, but the truth is that they are doing it wrong. Lebron is a great star without any doubt, but they don't need to use his son to gain audience. There are so many good young players today.
That doesn't make sense. NBA won't create something like that in general and in any case involving Bronny just to gain audience. Fair enough, Bronny is there because he's still on his rookie season and entering sophomore the next season. The NBA Summer League scheduled was formalized way back months ahead and no one even knows if both Bronny and Flagg will play on that game. There's no rivalry or something that the NBA do to gain audience.
Bronny is the famous Lakers player there while on the other hand, it's Flagg for the Mavericks. Expect a great audience. It's just that fans compared them which should be out of the context since the real competition was on the actual season. Just take it with a grain of salt.