Normal people have an incredible lack of empathy. They have good emotional empathy, but they don't have much empathy for the autistic kid who is screaming at the baseball game because he can't stand the sensory overload. Or the autistic kid having a meltdown in the school cafeteria because there's too much stimulation.
If flies are a great model, they're a great model for flies. These animals, you know, they're not like us. We don't fly. We don't have a compound eye. I don't think we process sensory information the same way. The muscles that they use are just incredibly much more sophisticated and interesting than the muscles we use.