This isn't only for FPS games, same thing is happening with RPG's. MMO are almost the only thing on developers' minds these days.
I fully agree with the article, and as long as titles like MW3 dictate the market there will be more room and incentive for creating casual spamfests with hollywood effects and the depth of the USA's budget surplus.
End of 2016 hardware sales:
Wii U: 15 million. PS4: 54 million. One: 30 million. 3DS: 64.8 million. PSVita: 15.2 million.