If you can point to any video from the last several months where he comes across as charismatic, I'd be genuinely interested to see it. Maybe I've lost touch with what charisma is.
He was fairly down to earth on the Joe Rogan and Andrew Schulz podcasts. I'm not saying everything he said was true but the tone of the conversations was fairly different from how he conducts himself at other moments.
Joe Rogan's #1 talent is making crackpots seem reasonable and chill. It's what makes his show interesting.
He seems to have realized lately that it's a better idea to take his "unhinged" persona mask off in one-on-one interactions like in podcasts or personal interviews. He wasn't like this before, a lot of his interviews used to be disastrous.