do you mind enumerating their claims that you suppose they didn't accomplish?
The core concept of Dfinity was supposed to be that they allowed developers to deploy secure Docker-like containers to anyone participating. It was a two-sided market, and the protocol was the market maker: hosts would join the network, which would earn them the Dfinity token. It seemed to be a replacement for mining.
They talked about things like censorship resistance, portability, etc.
It turns out that they had only signed up a single data center, so they were like a shitty ECS with unknowable pricing and absolutely no guarantees of security.
I even went as far as watching some of their videos. It was the most insane thing I've ever seen -- slick marketing production that looked like a parody of a futuristic TV talk show. It was beyond satire.
To make sure I understand, your issue not with their technical assertion that it's possible to do web hosting in a decentralized and trustless way as well as without massive compute overhead, but with their implementation of that claim, right? (because they only signed on one cloud provider to back their thing).
Note to self: I really have to get around to reading fundamental papers in the area as opposed to bothering generous HNers :) .