> On top of that, the NBA is always going to have a problem with height diversity
When I was a kid, I recall people loving Muggsy Bogues because he was a short guy thriving in a tall man's game. It was really dramatic to watch him start when everybody else on the court was 2+ feet taller.
Professional sports are a performance, and it's ludicrous to say managers and league execs shouldn't take things like viewership and ticket sales into account when planning a season or expanding a team's roster. The "home team" dynamic deliberately encourages spectators to identify with players with whom they share an affinity (even if it's just that they live in the same city), so it's unsurprising that the dynamic extends to nationality, gender, religion, race, etc, too.