Well, as much as I detest a lot of modern web design ...
Why would a window on my machine need to run JS just to show a scrollbar and page the window up and down? It's ridiculous, and IMO just shows the kind of mindset that thinks "Works great for me, everyone else better use the same apps I do in the same way I do." Not what you really want for some engineering tool.
It is
highly unlikely they developed their website themselves! It is almost certainly some off-the-shelf software package running some off-the-shelf skin.
I completely agree that we
shouldn’t need JavaScript for basic web functions (nor for many advanced ones, frankly). But the fact is that as
users of the modern web, we
do need it, because without it, tons of sites break.
But my point is simply that if one chooses to disable one of the core technologies of the modern web, then many sites
will break, and that by choosing to disable it, one forfeits the right to complain that the web page doesn’t work.