You don't fool me
As the name implies, atmospheric gravity waves form when buoyancy pushes air up, and gravity pulls it back down. On its descent into the low-point of the wave (the trough), the air touches the surface of the ocean, roughening the water. The long, vertical dark lines show where the troughs of gravity waves have roughened the surface. The brighter regions show the crests of the atmospheric waves. Beneath the crests, the water is calm and reflects light directly back toward MODIS. Clouds commonly form at the crests of the waves, and such clouds are visible throughout this scene.
We know it's really angels pushing down. Or maybe a hoax. Yeah, a hoax.