Elon Musk made an offer to content creators they would keep 100% of the proceeds from any content they put on Twitter for the first year.
His show probably had a lot of staff, producers, researchers, writers etc. So there are some costs involved in his production - but he could scale it down to suit the platform. And overhead would be a lot lower than a TV production. In theory he could make more money with a smaller platform.
It would get people to follow Twitter. I for one don’t.
Also it’s an apolitical platform.