I feel like something had to be wrong with the capture device or something involved in getting the image from the ps4 to the twitch feed. It looked like they were playing with brightness and contrast turned all the way up or something, it didn't seem normal at all. I really don't think, graphics wise, the stream showed how the game accurately looks.
Gameplay wise, I mean, it speaks for itself, there were some question marks, but no way it was supposed to look that washed out