From what I understand, it would be possible that Epic would optimize the Unreal engine to take advantage of the hardware, which would remove the necessity for anyone developing on Unreal to do it themselves. As an example. Not saying they are going to do that or anything.
So load times vs graphics. Hmmmmm, I'm pretty sure sony just threw in the towel because I'm a gamer just like many of you and i have to say is fuck that noise. Im a gamer i prefer how things look and handle over how fast it gets there if this is the best Sony can do then it's just like the Xbox One X over the PS4 Pro Xbox wins again nobody cares about load times