Another one who has no idea what a game engine is. No, the game engine has nothing to do with the number of party members that you can recruit. This a something you can put in every single engine on this planet with a few simple lines of script.
I think there are more diplomatic ways of phrasing things. I think the point is that some game engines are better optimised for that type of thing than others, though of course the precise definition of "game engine" is a moving target. See also the Chambers Dictionary's definition of "middle aged": "variously reckoned to suit the reckoner."