Earlier quoted context omitted.
This. Even for basic websites you benefit from some form of templating/components for example to get the nav & footer on each page.
You don't need a frontend framework for that. Fuck people who do. They're the reason most websites are slow as molasses on my three year old phone, despite them being very basic sites. Just stuffed to the brim with unnecessary bullshit.
Have you checked this is the reason? not slow network? and not ads/analytics and blocking assets? That's not exclusive to frameworks btw, and probably less likely as most optimize these things for you.
The website that is linked originally has a bunch of blocking assets.. lighthouse score is not amazing either.
Just like the original article, you might want to test your assumptions a bit more.