I totally agree with your point, but IMO replacing Youtube is the end goal and to reach it, there is some space in the middle to cover.

Just taking a look on the Trending Video on Flare, we can see the numbers...

There have to be done some steps in order to replace Youtube...the audience we liked or not is on Youtube, so first we have to teach them on Youtube about the advantages on the new platforms, like no sign in required, Zaps, no censorship, etc..and then, slowly, they will start to watch content on the new platforms....