You just can't know that for sure. It's only 90 employees who have to make a new game in two years, they just have no time to start making new engines and to try to radically change the series and they don't need to. I don't really see the difference between CoD and FM.
I can definitely see the difference, and clearly so can many people otherwise the wouldnt be commenting. Anyone who has been playing COD for a long time can see it. its not just about the a new engine, the single player is a mish mash, the story is terrible, this used to be a strongpoint in the COD series. FM makes a game with a smaller development team, and a much smaller budget, and they do it every year, and yet they still attempt to try and push the game, constantly working on old flaws, while trying to bring it new ideas.
I can know well enough when a company is happy with they have. if you follow their articles and listen to what they say, its quite clear where their priorities are. You are happy fine, but people are entitled to not be happy