The strongest evidence against Musk was Musk. His own 2017 emails supporting for-profit chats made the "betrayal" narrative very hard to sell.
There was no decision made on this basis. It was dismissed entirely due to the elapsed statute of limitations.
He lost the lawsuit on a legal technicality about the statute of limitations not on substantive grounds.
Muskys problem is does things in the moment as a way to increase popularity without thinking that end up bitting him.
e.g the twitter thing - forced to buy when he didn't want.