Apparently the account associated with the channel has been terminated? Very weird.
SpaceX only streams on Twitter, for obvious reasons.
Because of this, there are always a few channels that rebroadcast their stream to YouTube, with some scammy crypto pitches added in.
The reasons aren't obvious to me. They still have a YouTube account.
I think in this specific case, it was due to using trademarks. I can't remember the specific channel name, but I think they were half-ass posing as SpaceX.