It's still only available on about 90% of global browser traffic. If you're going out of your way to support noscript smoothly, you probably care about supporting more than just 90% of web traffic.
You think people that keep JS disabled will on average use older browsers?
Idk, I honestly doubt that. In my experience the people using outdated browsers are on old mobile devices and some "special" enterprises micromanaging employee software installs
And technologically illiterate apple users (because Safari doesn't Auto update like Chrome and Firefox)