While this is occasionally true, I believe it is most of the time not true. Many, many features (e.g. endless scrolling) get pushed out to consumers who don't want it. By and large, consumers of websites want text and images. The push to put embedded video, lots of ajaxy updating of content, etc. has happened on countless newspaper, magazine, and other websites where all the consumer wants is the words and the images. Many features, like allowing comments, are actively disliked by the vast majority of users. There are, certainly, a few corners of the web that need more than static html, but >90% of the websites in existence that are _not_ static html, should be, and the consumers would like them better that way.