I think this post captures the wave of entitlement among a group of Elm participants of that era that led to what looks like catastrophic burnout in evancz, Elm's creator.
It's been a while since I watched them, and I recommend his talks, but at least one or two of his talks are centered around what is basically unfair expectations. In one talk, [bad paraphrasing, but] he compares how people's expectations of him and Elm aren't much different than the expectations they have of languages with millions of dollars of corporate support behind them, and people don't temper their their expectations accordingly when dealing with him.
You just know it's a shit show starting a language and then having an increasing amount of your time pilfered by people who think because they are a big fish in your small pond (ecosystem), they deserve a level of command they would never expect from, say, React or Javascript or SwiftUI or Swift.
I still use Elm for personal projects. It's the one stack I've used where I can revisit a project I haven't touched in ten years and instantly push out a new feature. Just by writing the code I want to exist and then backtracking through type errors until it's implemented (that really never gets old). It makes a lot of sense for personal projects for that reason which tend to accumulate infinitely.
I always kinda wonder how evancz would describe his experience off the record, friend-to-friend.