My opinion as a video creator myself: let Dave do whatever the hell he wants, its his intellect, his content choices.
You can suggest what YOU would like to happen, but as Dave has already said, you cannot please everyone, my channel is 100th the size of Dave's, but I have already seen the effects of what this thread is all about, people have different tastes, you cannot cater to everyone, and there is no point in trying, it just sucks the life out of the thing you are trying to do, it really isn't worth it.
Listening to opinons, yep sure, often it can be helpful, but when it comes to changing video formats, sorry, that is the sole choice of the creator, we make what we want to make, and we always do our best to capture what we are trying to say, in the way we feel is most appropriate.
I don't watch all of Dave's videos, only the ones that I think will interest me, and ones where I learn something (so most of them really).
Dave does a great job of filling the blanks and spelling out things which some people may think are obvious (aka waffling), but actually may not be obvious unless you have already been told about it by say, I don't know, some electronic moving pictures medium.