Snow Crash is a a dystopia because of hyper capitalism not because of the metaverse. It's like worrying about space travel because 2001 had a runaway AI.
The metaverse did empower malicious advertisements to selectively target people (and put them in a coma) in Snow Crash iirc, so maybe it's really just a pivot deeper into that side of adtech.
The physical world of snow crash was a dystopian hellhole. The metaverse of snow crash was still step up from that physical world, at least for the protagonist. They were a corporate pizza boy slave in the real world, but in the metaverse they were cool and had power and agency.