I do disagree about the web being poor for content though. Properly done it is way better than PDFs. Provided it's simple and clean.
It's definitely not better for content. It's impossible to reference easily, everything is transient and ephemeral, layouts differ all over the place, there is no concept of location other than anchors which are poorly defined, typography is "variable" and goes somewhere from hooky to crack smoking, still to this day half of the images are rasters, it's near impossible to save bits of it locally if you want to keep it, it's difficult to print and importantly the moment you add something dynamic to it you multiply the damage by 10x for all of the above.
I hate modern sites where you need JavaScript to load text and images.
My issue with pdf is it's a shit show behind the scenes.