Me and my unpopular opinions strike again 
I like long tutorials because I really love to absorb knowledge, even if I know what I’m doing. I watched all those Roblox University videos years ago taking extensive notes on what I found useful.
Yet I like short ones for reference.
It depends on what I’m learning, how new I am to it and how fast I need to learn it.
TLDR: I think it’d be nice to have a high level overview and a deep dive.