What does processor architecture even matter to a consumer? Is the Xbox 360 a pre-Intel Mac because it uses PowerPC archictecture? I don't see why so many people mention this. Consoles have always been about custom software, not unique hardware architecture.
It absolutely doesn't matter to the consumer of {XBox One | PS4} games. However, as a PC gamer, I'm excited by the fact that the consoles have x86 architectures, because this removes one of the obstacles preventing PCs from getting console titles.
The boring nature of the architecture is notable as it puts the focus back on software, which is what people care about. That devs this generation can just make shit without discovering the complexities of custom hardware is a good thing.
That's probably true for Playstation, but I think developing for Xbox was already pretty much like developing for Windows, even with different hardware architectures. Most game devs don't looking too deeply at the hardware but just use the tools they're given. The ones who want to understand what's going on in hardware will still study the details of the CPU/GPU.
Sony will start streaming eventually. It would be fantastic if they implemented a disc matching policy, allowing you to stream a game with the disc in the drive. Perfect backward compatibility with no software support necessary.