It sort of means "Consumer brained"

We use "treats" as a catch all for conspicuous consumption in the west. So shlocky movies, expensive pickup trucks, oversized mcmansion houses, funco pops. It's not just luxury goods, it's people basing their whole view of the world on the "treats" they consume, to the point where it dominates their world view. A common accusation is that as long as they get their treats they'll never engage in active resistance or even notice how the world works.