It's obsolete not because it lacks nuanced discussions, but because the world has moved on and left it behind. The Firefox team can argue all they want about whether they want to play catch up, but they're always playing catch up and getting further behind every year.

There's no such thing as web standards anymore, only what Chrome and Safari do.

Edit: I think that discussion is a good example. Reminds me of the Ents' council in LOTR that endlessly debated what to do while the battles were fought without them. Firefox is just living in its own little bubble. The rest of the world keeps lurching forward under the Apple-Google duopoly, and Firefox gets more irrelevant every year. It was once a glorious challenger, now it's just a forgotten has-been celebrated only by ideologues and purists. I wish they'd give up on Gecko and just officially work on Chromium to make that better instead.