I am sorry to burst your bubble, but all professional sports are entertainment. The "competition" is secondary to enjoyment and making money.
The age of podcasts have really shed light on the behind-the-curtain aspects of professional sports in America, but especially the NBA. Hearing the players talk about how games are officiated, how rules are enforced, etc. is amazing.
If MLB was more concerned about the competition itself, it would legislate out manager/umpire arguments, on-field fights (especially RP running in from the bullpen), umpires grandstanding on the field, and anything to do with time restraints.