He's absolutely trying to flaunt that he has privileged access to Phase that other fans don't. I don't think he's making these posts maliciously like Coomalot did, but I do think he got a bit of attention and he enjoyed it. He's on the road to becoming one of the more annoying kinds of orbiters who feel the need to constantly remind people that they're in the cool kids' club rather than letting the collaborative work they do together speak for itself, which comes off as leech-y and unprofessional even without taking vtubing's unicorn faggotry into account.
There's also an odd dynamic where he's going to dinner with a group of people he draws softcore porn of, which is... something.