Who cares? The web preceded the Internet company. I remember, it was a great place full of interesting people and things, not shitty content mills crammed full of ads. A system like the one described means that ordinary people can build the web again, which is great. Businesses can continue as they are.
Ordinary people can and still do build the web. Why would decentralization allow for more of this? It's cheaper and easier than ever to spin up a heroku/do/aws/google/azure instance and put up a website. Things like squarespace and weebly even make it so you don't have to do any programming whatsoever.
In theory I want this decentralized web stuff to succeed but in practice the only killer apps I see are overthrowing governments and kiddy porn. I'd be happy to be proven wrong. From where I stand, decentralization seems like more of a social/product problem than a technical one. If you prove there's a product that end-users want that can't be built or accessed from the current web, people (end-users and developers) will switch.
