This is not at all surprising. LeBron has been the biggest draw in the NBa for years. The only thing he couldn’t do is sell out home games in Miami, or keep them in the stands til the final buzzer - but that’s not a LeBron problem, that’s a Miami fan problem.
...the biggest ratings decline came in Cleveland where the departure of LeBron James from the Cavaliers caused Fox Sports Ohio ratings to drop 58 percent. Conversely, James’ new team, the Los Angeles Lakers, posted a 31 percent ratings increase on Spectrum SportsNet — the team’s highest since 2013.