Yep, but what can we really take away from this? To me its obvious, its easier to port Fifa 18 to Switch using the PS3/360 engine rather than Frostbite. EA has been very cautious approaching Switch support, and porting their Frostbite engine to Switch was probably off the table when they decided that support would be very limited at launch. Basically EA is saying prove your platform credible in the market before we make a more substantial investment. The least expensive way to get Fifa onto Switch.
For Fifa, you have to ask yourself what does the Frostbite engine really bring that the previous engine didn't that really changes the experience. Even if there are missing modes in the Switch build, are they really tied to the engine? Sometimes missing features are just that, missing, and not tied to the tech powering the game at all.