There's a difference between "not as often as previously" and "not at all". As far as I can see, there has been little to no activity in
Marvin's GitHub, either, over the recent months, perhaps a year, which as you must know, is an official developer's tool. In Marvin's Beta-testing group, too, so active in previous years, there has been not a single message in 2015, as far as I'm aware.
I'm not saying whether that's good or bad, but those are the
facts, and there's no use trying to cover them up.