I took masklinn's comment to mean that your point in sharing the youmightnotneedjquery.com was to show evidence of problems using vanilla JS instead of jQuery, not that that's the point of the site existing.

The site has plenty of examples of vanilla requiring writing multiple lines compared to one jQuery line, which I took to be your point regarding "ergonomics." EB66 seems more focused on a subtler point regarding the site, that their vanilla examples don't do everything the jQuery version does.

I like your reading better than my own. I've re-read a few times and it's still written in an ambiguous way, so I don't feel completely silly.