I don't know if the politics of this are brilliant either way for DeSantis, but probably better to leave it to play out in the courts at this point. Does he really want to use up more political capital fighting with Disney World? Maybe it plays well with those particularly energised about cultural issues, but too much focus on this makes him look more than faintly ridiculous and kind of petty as someone running for the presidency. In short, is this the kind of stuff he's going to spend all his time and energy on if he wins?
He may get mocked by opponents from all sides if he walks away and it looks like Disney outsmarted him. At least people may stop talking about it and move onto other things he'd prefer to talk about as the court battles continue on, however.
If he's as petty as he seems, however, he may not be able to resist continuing to try to "win" over Disney.