Because of the speculation and the “hidden” drive to make money (it’s basically a 21th century goldrush) makes it that it will never be what proponents usually advocate (decentralized, everyone benefits, open)
2002-2008 internet (before Facebook) was more Web3 in spirit probably then this Web3 bamboozle.
My sense is that a lot of people who are zealotic about "web3" are people who never got to experience pre-FB, and want to do something about it.
I wish them all the best, but I'm not optimistic yet.
So it's even worse than you say, they are selling a sign pointing to a very cheap house, but not for the price of the house but by overvaluing the sign's value.