If Lemon's so-called naivety was so embarrassing, why would he publish the interview in a different venue? Sounds to me like Lemon doesn't have anything to hide here, and all the egg is on Musk's face. If anything, engaging with Twitter looks like a smart move on Lemon's part because the attempted cancellation raised public interest in the interview. The opposite of naive.
He lost a big deal because he wanted to be hostile and argumentative and against the truth (when Elon told him people will show whos right/wrong, he said that doesn't mean anything even if there is a study attached)
With that said, he was given the same opportunity to other democratic leaders and they are on the platform with no issues.
Don was being a complete jerk and wasn't being genuine. Don has always been disingenuous and full of it. Plus everyone thats worked with him at CNN hated him