a muddled brand is better than the currently maligned harbinger of misery disinformation and insurrection that Facebook has been mired in. Recruiters at Meta probably appreciate the distance.
I suspect it does help because a lot of hiring goes on for Quest, Instagram, Portal, WhatsApp, Workplace — you can talk to candidates about those specific products rather than make them think of grandpa posting right-wing memes on the blue app.
That being said with all of the data Facebook has from Facebook itself I would imagine Suckerberg must know that for the long term success of his different businesses they do have to distance the smaller ones a bit more than they are now - personally I am hoping we see a major fall in Facebooks value and influence and things like Oculus are spun-off to be as autonomous as possible.