Lots of good theories here, but none saying "TikTok", which I think is the answer.
TikTok is a big reason wired headphones are popular. AirPod microphone quality is spotty and improving the quality is non-deterministic. With wired earpods, people put the mic next to their mouth and get above-average audio quality.
Like the article says, wired headphones have also become a fashion statement akin to vinyl culture.
I dunno; IME many people who could barely be called a ‘creator’ seem to invest in a standalone microphone already, and many of these (the portable ones anyway) aren’t wired.
This is why I use wired for longer calls or video conferences. I've tried so many wireless in-ear things and all of them are more sensitive to surrounding noise and I have to repeat myself more due to dropouts or spotty quality.
It's just much harder to get good sound quality when the mikes are by your ear rather than on a wire near your mouth
Not to mention that it completely removes the risk of running low on headphone battery mid-call