Why would the author's use be the wrong one? And why should YouTube be different, in principle? (Maybe you are using YouTube wrong...)
I think at some point there was a shift in the way we consume online content, from "I'll read whatever is up now" to "I have my list of things to catch up with". RSS is older, so it is natural to connect it with the older way of consuming content. But there is no reason we can't do the same with YouTube channels, for example.