Those members notions are based on the specs we are currently expecting from the Neo. It could turn out those leaks are entirely wrong, or they're right and Sony finds as a way to drastically change the Neo's design before launch, but as it currently stands the Neo isn't strong enough for 4k to be "the primary focus". Hell, even the Scorpio is likely to miss its 4k target pretty often, and that's currently expected to have a GPU 30%~ stronger.
Until we actually see the Neo and Scorpio in action, i'd say it's reasonable to take anything Sony or MS say with a pinch of salt.








