Yes, it'll definitely take them some time to catch up, and currently the pendulum is swinging in the other direction, but as soon as a critical mass of retail investors get burned, I predict that they'll quickly figure it out.
I would have thought the massive proliferation of scam coin rug pulls would have done it but then the US elected a president who did his own crypto pump and dump rug pull right before his own inauguration so I doubt we'll see any real action against them for the next 3.5+ years.