Hype? To jump on a bandwagon?
The history of IT is littered with 'next big thing' bandwagons that really weren't that big at all.
That's a fair point.
So blockchain/NFTs/crypto allow actual immutable ownership of in-game items by users. Furthermore, they'll be able to transfer these items between games. Via approaches such as play to earn, users share in the economic upside - alongside the game developers. Developers benefit at the expense of the gaming console monopolies.