This is one of those things that may feel like a good idea in the short term. AJ has a ton of money and Tennis Channel is an under utilized asset. So we might well find that AJ overpays, is willing to spend and comes in with higher budget programming, streaming, etc.
However, in the long run, there is no question that "editorial control" would be lost. This could impact everything from sponsors, tournaments shown, players featured and announcers. Put another way, those wishing to see the end of Gimelstob as an announcer may get their wish - for reasons unrelated to his horrible announcing!
If you don't believe that, you haven't read or watched AJ!