At least you aren't directly accusing me of failing to RTFM!
I've been vaguely aware of what's in that RFC, but I don't think reserving those TLDs for local stuff means that other TLDs are off limits. I certainly don't use example.com for all example emails. Developer happiness comes first.
I got burned by going with domains outside that doc, but I think the blame goes on Google, not on those who decided to use .dev without making it an official standard. I think if it was an official standard Google might still have muscled their way into getting .dev, and I wouldn't be surprised if they do the same with .test in the future.
I'm a developer too, I always use example.com because accidentally triggering bogus outbound mail from corporate IP addresses can make a mess for Operations.
And Google gets baseless accusations because you feel entitled to something. Enjoy the feeling, you're entitled to it.
.test doesn't convey the meaning I intended.