That was my approach too, certainly in trying to collect a wider range of questions so that every Q & A covered as broad of a scope as possible and everyone could walk away with at least one question relevant to them answered. But based on the feedback and comments we had underneath them, almost every time it was "this is useless", mostly because there are those that simply want to see the same topics talked about over and over again (BRs, Map size, top tier etc etc).
As you say, the developers are also very busy, so they dont want to be answering the same questions over and over on the time they do have free to do Q & As.