"I woke up this morning in a bad mood and decided to kick them off the Internet. … It was a decision I could make because I’m the CEO of a major Internet infrastructure company. ... Literally, I woke up in a bad mood and decided someone shouldn’t be allowed on the Internet. No one should have that power." - Cloudflare CEO Matthew Prince
Requiring every web browser to support every bleeding edge feature to be allowed to access websites is not the status quo of how the web has been for it's entire existence. Promoting this radical ideology as status quo is also seemingly shady but perhaps the above corporate rep is just in so deep so long they've forgotten they're underwater. Corporate use cases are not the entire web's use cases. And as a monopoly like cloudflare they have to take such things into consideration.
But they keep forgetting. And they keep hurting people. The simple solution is for them to make cloudflare defaults much less dependent on bleeding edge features for the captchas. If sites need those extra levels of insulation from the bandwidth/cpu-time to fulfill http requests it should be opt-in. Not opt-out.
The solution for the rest of us humans that can no longer read bills on congress.gov or play the nationstates.net game we've been playing the last 20 years is to contact the site owners when we get blocked by cloudflare and hopefully have them add a whitelist entry manually. It's important to show them through tedious whitelist mantainence that cloudflare is no longer doing it's job.