Most online writers and copywriters learned their craft at a time when the web was all about static websites.
To put a date on that, let’s say the period of “come and spend time on my great website” was between 1995 and 2008. More or less.
I’m pretty sure the majority of freelancers learned how to write for the web during this period.
Is this a problem? Could be.
Before then, in the eighties and very early nineties, the Internet was around, but the web wasn’t. In other words, people were connecting through the infrastructure of the Internet, but there were no browsers. No web as we know it.