I agree that things are moving slow. But that is how it has always been, at least while I've had my KPA. Almost glacial
When they DO put stuff out, in my experience it is very well thought out and often exceeding the expectations of many (with room for disappointment for some, of course).
I've also thought about whether they are stretched a bit thin since liquid profiles announcement (which included 4-5 other new things). But if I had to guess, they're not MUCH more stretched thin than normal. I think they simply prefer to have a smaller development team than a large one. It certainly impact how quickly they can roll out stuff, but it probably has other benefits, like a better fit for their company culture.
I will say, however, that I don't think they ever announced a profile store, although that was how I interpreted the facelift of the rig manager re. the kemper-provided (free) packs from commercial sellers. Upon re-read I decided that they simply added a page for each of the vendors in rig manager.