The Blender Institute does publish weekly reports though. This shows the world that stuff is getting done, and that’s very important.
Currently I don’t consider Armory mature or stable or battle-tested enough to base anything of my own on it, so I also don’t keep track of the commit logs. From that perspective it looks like the project is dead, with no activity since 0.5. I know this isn’t true, but it looks that way.
So color me unsurprised when you see people leaving.