Right, but the article itself is about how to do Elm better.
Anyway, it probably isn't much of an issue to them, but, to hide the bottom popup Firefox's reader mode didn't work, so tried disabling js and discovered the issue. Gatsby does seem to have SSR though, so perhaps it's easily doable should they want to.
Seems like a log management company that mostly writes about security and devops, not really a "web technology" site