I think they're becoming a bit of a fad again. Many streamers I follow have been obsessing over them recently (granted that they're mostly not zoomers, just millennials enjoying some nostalgia).
The current 90s nostalgia wave is pretty interesting as a late 80s/early 90s millennial. The zoomers brought it back into the zeitgeist, and we are still young and hip enough to be interested in the trend, but we were actually there the first time round!
Tinfoil hat theory: it's actually not an accident. Every kind of cultural thing appears twice, at a fixed offset of about 3 generations. First time around it's the original that captures the hearts of a given group and gets them to spend money. The second time around, it hits the purses of those same people, this time just banking on nostalgia.
I don't think it's any more complex or sinister than the fact that rehashing old content or look/vibe/sound is cheaper and easier than coming up with entirely new ideas.
Just look at movies and music over the last 5-10 years, it's mostly remakes, reboots, covers, and extensions of existing 'universes'.
Yes, I'm looking at the movies and shows over the last 5-10 years, and they aren't remaking and rebooting arbitrary older works - they're rebooting the specific stuff that the current most-spending generation grew up with.
I'm not saying it's sinister, but more that it's a plausible outcome of optimizing for profit.
