Unless I'm missing something?
As a developer though in 99% of cases I'd much rather just pay for a few servers in multiple datacenters and load balancing than waste time researching the above, let alone proving its cryptographic security for my use cases.
It could, however, be useful for cases where you're trying to get over foreign government censorship or oppression against whatever service you're trying to provide. Imagine, for example, a free speech discussion service that was decentralized and essentially un-blockable. Bonus points if its cryptographic system can be designed such that an arbitrary processing node can never be proven from its data alone that it was helping run the service (among other services).
I'm not outright dismissing the technology or the thinking behind it but it certainly wouldn't fit a majority of use cases as we use the internet now.