Yes, the triggers I should have mentioned, if I wanted to clarify things :) , but it is the way I expected, thanks.

Thematically, morale gain fits nicely, no contest here. What I am afraid of - Gluttony sucking out other morale gainers dry :) in terms of their played rate / army building. And inside match, becoming strong in both moveset and morale, so it is a big threat itself, and can help sustain other losses too well. Also, letting enemy Gluttony "kill to downgrade" I find as nice idea / tactic for counterplay, loss of my material seems as enough sacrifice already :) . However, this is just me thinking out loud the theme / fantasy of the unit and its effects, not a hard balance stance or serious concern.