Yeah they survived but I think we're worse off in a world of Content ID, copystrikes, erosion of fair use, theft of ad revenue by game companies. The list goes on. YouTube should probably be a lesson, not a model to copy.
Creators need to use restrictive licenses, then all of these parasitical corporations will cease to exist.
I can't talk about licensing for content creators (like youtube), because I do not have much experience about it.