Hey, I like YAML config just as much as the next guy, but I understand the decision to go the GUI way.
With large Home Assistant installs YAML gets really messy, and most changes require a reboot to show up (well, both issues could be fixed by the devs, but they chose otherwise). I really thought that I’d miss YAML, but so far it’s working just fine for me. Migration or restoring is a bit more tricky, as I prefer the start from scratch approach instead of the restore a 10 year old backup one.
Home Assistant’s (docker install) backup is just a zip file of the config folder. This makes it easier to fix things if needed, but isn’t as nice as editing YAML directly. I’d love to have option to use YAML if I want to and GUI otherwise.
As for developers being a bunch of assholes? Well, you’re right. Luckily the community is much better and much more helpful.