I'd argue it's really the author just saying out loud for themselves, like they need to cast off this old, and always stupid idea, that interfacing is condoning, that if you don't performative turn your back on "$THING" for "$Reason" that means you are for "$THING", even if not doing so has zero material impact at all. Me shitposting on Twitter (you can still call it that, X is a dumb fucking name and everyone knows what you're talking about, if you want to do the performative thing) is not why Elon Musk holds the shitty views he does nor why he has a trillion dollars in net worth. Me tapping "like" on a picture of an old computer on there does nothing. I own no stock in any of his companies. I buy none of his products. I make basic text API requests to a website he bought and block ads on it. So why would I leave just because he's a twat? Fuck him! I was there first!
Twitter/X never stopped being the place where people who have something interesting to say or show stopped hanging out; conversely, the big Bluesky migration really just meant a lot of annoying people left. I'm glad some of the more interesting ones are figuring out what a lame idea it was to leave in the first place. Come on back! It's worse than it was but it's no worse than anywhere else!
Like, you have to first prove anyone should care if you turn your back on them before you make a big show of turning your back on them. Otherwise it's just cringe. And just like "it's not an airport, you don't need to announce your departures", you don't need to announce your return either. No one who matters will judge you for looking at Twitter.