I mean look at OP and JJBA. Very long running Mangas. But easily accessible to everyone and their mother a d can find like 100 YouTube videos/articles about it. If I wanted to know something about these series I can easily research it and read it. But comic books you have to dig through and hope someone on the internet will have the information you need. I always felt like, and this is just me, that having one author, one source for the main Canon of a series is really beneficial.