Sorry but that's really dumb. You shouldn't make things new just for the sake of it being new, you do it to improve. Sony's patents shows that have ideas for new features that warrant UI updates. Microsoft revamps their UI almost every year, They did one within the last year with a design that they think would work best. If there's room for improvement they will try to improve it. But throwing out a UI simply because you have new hardware is dumb. TVs, phones, computers, set-top boxes, tablets, etc. all don't throw out their old UI for the sake of doing it. They iterate and improve. If there's a slew of new feature sets or you think of a better way for your new hardware then you upgrade your UI sure.
PS2 had no UI so they had to give it a UI for PS3. The PS3 UI was shit and wasn't designed with social features in mind like the 360 and they add a slew of features to match the 360 and a slew of new features for the PS4 that a UI update was necessary. Also, on top of that the XMB design wasn't an efficient way of displaying data, it wasn't good for discovery, doesn't fit modern desing trends and it put a large focus on dividing up media into a bunch of categories which you can no longer store on a PS4. The Xbox One had a big push for voice control and they also had a slew of new features including multi-tasking and a push for a common design style from Windows 8 and so needed to be redesigned. Updating UI has only been something done for 2 of the 7 console gen transitions. So there's no strong precedent for it in the console industry or in the tech industry. If Sony thinks they have a better idea for a new UI that's great. But Microsoft already implemented what they thought was the best way to control the UI at the time. Throwing away what you think it is good because "it's a new console generation" is just plain silly.
