Re: Historic revisionism
Decentralized always has strings attached: usually in the form of slow transfers and bandwidth overhead.
I'm not sure this applies to the reasonably decentralised internet infrastructure. Although it's by design, signing a new transaction using the ledger of every other transaction so far is bound to be slow. But the fundamental problem with a distributed system is that it cannot be relied upon to secure itself.
The current series of Silicon Valley touches on this quite nicely in the episode "Inital Coin Offering".
The internet did a pretty good job of providing a set of reasonably trustworthy DNS servers while giving members the chance to run their own. It's just such a pity that it failed to do something similar for encryption, but that was more down to politics than anything else.