Food chain? The casual players are the ones who fund the game's existence, and this is coming from a hardcore raider. I know we're a dwindling minority.
But to be fair, LFR this expansion WAS too unrewarding. MoP's system could be argued to be too rewarding but the current model is fucking useless to do except to work on your legendary., which is one of the reasons for the queue times being significantly longer than Siege. And given there's been next to zero compelling or rewarding outside of raid content, LFR basically has be rewarding. MoP at least had daily rep gear, Valor, multiple weekly loot pinatas, and Timeless Isle for things to do and ways to get gear.
There's valid complaints from casual players bitching about LFR when it's the only thing in the game worth a fuck to do and there's not even rewards for doing it.