Because disabling JS is unheard of in the open source world, right?

They implemented a feature that breaks the website for people who otherwise have no issues while providing no functional value to the site "rather than spending time building their actual product that people want to use."

It's one thing to expect them to do special work to support an uncommon configuration, and it's another to feel frustrated that they did extra work to break a less common but still unremarkable configuration.

I entirely support people not wanting bots to scrape their shit, but there's a handful of websites I use that use this specific blocking software and it frequently gets angry and blocks me if I'm on my phone for no good reason. It's annoying, and getting angry at the user for being upset that your website is broken is about the only thing more unreasonable than demanding that an open source developer do work for you for free.