I disagree with any argument that since he decided to sell, and sell for a good valuation, that he should give it a rest. This is coming from the perspective of someone that has been part of the rank-and-file that stuck around after a tech company acquisition (3 times, soon to be 4!).
If the new CEO just shrugged us off as "not as good as we hoped and not experienced", and treated us poorly, I certainly would appreciate my former CEO standing up for us publicly. That's at least something to balance out the questions I would get at my next interview..."Oh! A former dropcam-er? Are you one of the 'not as good as we hoped' guys?"
If the guy deserves to be trashed for the way he manages his company, then I'm glad someone's got the cahones to do it, especially when standing up for the people that helped him get that big cash-out.
If you don't want to see that mission die' as you say in your post, start up Dropcam 2.0, and see if you can repeat it in today's market...
I would imagine that the CEO Emeritus is broadly restricted from competing against any thing resembling an IoT camera/sensor or Nest product for at least a couple of years. On the other hand, Zenefits may be a good fit. ;)
Fadell has left the Nest, today.
But did he jump or was he pushed? And more importantly, can he still fly?