I agree totally. 20x16 - 22x16 are great size, for transportation, as well as sound. I'm not particulary fond of the 22x14, but I admit I haven't played good quality ones. The one I played seemed a bit dry and tend to creep forward more easily.I think deeper bass drums are already starting to go away and I’m ok with that. I’m finding more kits being offered with a 22x16 than a few years ago. I’ve always preferred a 22x16 over the deeper drums even though I do currently have 2 kits with a 22x18. For gigging I really prefer my 22x16 over the 18 inch deep ones. It sounds just as good (maybe even better) and those 2 less inches seem to make a big difference for room on a tight stage. And it fits a lot nicer in the back seat of my truck.
Winston Wolf stated that most of these trends are started by wanting a new look. And I would agree with that overall. Which also raises the point of...what other instrument does that happen to, where their instrument is, in a way, subject to fashion?
My Saturn V bass drum is 22x18. I prefer 22x16, but not enough to do anything about it. Peace and goodwill.