Elon got what he wanted. Everyone on his side now thinks he's a bastion of free speech, and he can forever say "If I owned Twitter, I would have...". And he gets the credit he wants without having to actually do anything.
Twitter got what they wanted. They didn't want Elon to own the company, but they also couldn't ignore the offer. So they called his bluff. They would have ended up with a world of pain if they didn't accept the offer, but nobody at Twitter wanted it to close. And now they'll be able to sue Elon and get the upper hand.
Both sides got what they wanted here. I just wish it didn't have to distract all of us so a few rich people could mutually level up.