I really don't think many people realize what forks are in general.
Add to the fact that Vitalik is trying to hardfork into PoS Ethereum while simultaneously rendering the prior PoW chain useless, making a full swap over without having something like another Ethereum Classic.
This prevents a host of problems, but it's also much more difficult to coordinate, it seems.
RE: Ethereums Upcoming $29 Billion Hard Fork