> There is no single service that can go down [...]
> Each piece of content is loaded entirely independently, [...]
Both of these statements can be true, but in fact, what ends up happening is someone puts their site on a pinning service like Piñata or Infura, and then it's right back to being centralized and trackable. Filecoin helps decentralize who pins, but even then, one ends up using a pretty interface like web3.storage since using the real service is just too much overhead for just pushing a page.
I'm personally a big fan of IPFS, but I'd use it to make an entire site reliable for users who care to self-pin.