People think they want 60fps.
People were also perfectly happy playing games at 30fps last gen. Almost every major PS4 blockbuster title that got mountains of praise and love were 30fps titles. 99% of these '60fps or die' folks would have little issue going back to 30fps if they had no other option.
But yea, I've been saying for a while now that if this '60fps or die' mentality starts manifesting within development studios, this generation will be disappointing from a technical standpoint, as devs will not be pushing the hardware like it could be. It's basically like halving the entire generation leap, from a processor horsepower standpoint.