I would agree, but I was part of another thread (I can't find it) where someone said they have been keeping corals under it for a while now and they are colorful and growing. At this point, I'm not sure I've even seen before and after pics or any real proof, but I will say that this fixture is not going to penetrate very far with potency.
I would want 3 watt LEDs over my tank. That said, it's probably not the reason it's not accepting food.