On theweb, not surprised that Rails switched from kind of encouraging people to use as many browser-automated tests (under whatever name) as possible , to trying to discourage people from using any. Rails way really likes being absolutist.

I work in Rails too, I try to keep them to a minimum, but I definitely try to do at least one happy-path test of any major page (which includes automated accessibility audit), going without them at all seems insane to me.