Revealing games this E3 isn't the same as sparse year in terms of first party titles Sony is talking about. Sony could very well show off a lot of exclusives with very few launching this year and likewise so would Microsoft. I think people are reading the statement made by Sony today as Sony saying "We have nothing to show this year that's new and upcoming but... here's POWERS!"Xbox Division has stated many times that they plan to unveil a sh*t load of exclusives this E3. Which will be their focal point. While it really doesn't seem that way with Sony.
What would had been the biggest difference had The Order, Bloodborne, MLB, Persona 5 and other games instead of launching spread out this year all launched September-December?? It would still amount to the same amount of games.