MLB negotiated for all the teams it's doing production for, so it's probably not a complete collapse from what they paid Bally's. But I'm guessing they went from $54 million in 2023 to $44 million in 2024, so around $30 million in local TV this year. If it wasn't a multi-year deal, they might get another haircut next year.
My suspicion on the long-term is that the Yankees/Dodgers/Red Sox/Cubs will balk at the Amazon proposal and it will significantly hurt the $$ the other 26 clubs can get, even if they eventually go that route. I have no faith in Manfred to strong-arm them into it.