> Short(ish) YouTube videos is simply not the right format for serious work, sensationalism or not.

I disagree. For example SIGGRAPH presentation videos manage to be short, informative, and largely non-sensationalist. You can see some of them in this playlist: https://www.youtube.com/playlist?list=PL1PdIP1lGMJJzRFjlDajK...

StiffGIPC presentation makes good contrast here: https://www.youtube.com/watch?v=3TBoTX2vag4