I don’t see that it requires Epic to get it done actually, any capable company can start tutoring or teaching. I believe there are many classes already in existence. Just as it’s not Adobe’s task to have official Photoshop classrooms around the world, I’m not sure if it’s Epic’s task to do so for UE4. They might collect these possibilities together on a nice interface, but that’s a different thing.
With that I agree, back then there were many more frequent and eloquent responses to interesting questions from Epic members. Some of those posts are still some of the best resources out there, as they only exist there, not in any documentation. Nowadays we really have to beg for any official response for any problem.