Does quality of play in any way matter to their income? If all the teams got say 20% better, would more people watch the sport? It's hard to say with any certai

Does quality of play in any way matter to their income? If all the teams got say 20% better, would more people watch the sport? It's hard to say with any certainty that they would. I feel like the over-saturation argument has a lot lot more merit though.