for an online FPS-type game I can definitely see a lot of advantages to pushing off a PC release. You don't have to worry about pirates, hackers, and cheaters at all with consoles - can't even run user code on ps4/xbox one. And lets face it, based on all the tech support we give to extended family there are tons of PC users out there who have seriously fucked up systems with video drivers that are 6 years old and filled with malware.
thats why I really like the steam box concept, a reference PC gaming platform that is user-serviceable so power users can tweak and upgrade, but newbies just get working out of the box, that allows for a gaming platform with scaling levels of CPU and GPU power would be really nice.