I don't think there is a real problem with what dTube is doing persay I think that expectations are set by the name. sure you did your research and well many steemit dApp docmentation isnt great and a little marketing goes a long way
I think dTube should reposition itself away from being a "YouTube" alternative but instead a snapchat alternative where vidoes are seen as disposable content since well you only earn for 7 days and well finding old videos isn't really a dTuber thing. Its more about latest content being produced. you're only as relevant as the last video you post kinda thing
I personally don't see much value in dTube apart from hoping to get upvotes from the various communities and dTube itself. I'm going to be honest I don't use the platform at all, ive watched a few videos from steemians I follow and its really mostly vlogging, tips on how to use dTuber and response videos between other dTubers or interviewing other dTubers.
I found a few creators who actually did really interesting content or cool commentry about topics but they stopped using the platform and so my interest in it kinda went along with it.