As much as we could argue about whether no-js support really matters or not in 2020, the fact remains that having to having to load Vue.js and have it parse and render the frontend on the client is not really "lightweight", especially when the most popular competing products pre-render on the backend.

It wouldn't honestly be that much of an issue if it was a SPA (and it must do SPA-ish things already if it uses Apollo) so you just load the frontend once and it'd load other pages asynchronously, but nope. Every link is a full page reload, with Vue having to re-do everything every time.

It just reeks of modern tech used in an old fashioned way, which ends up with the performance penalties from both.

Go browse any other wiki, see how much faster and smoother the experience is.