>>56229844>one was made with passion and love, and the other was made cynically as a commercial productThis.
There was passion and love in XY when they were making horde battles and thought "hey, why don't we actually show Seviper and Zangoose's relationship through gameplay by having them uniquely attack each other instead of attacking the player"
Meanwhile games like BW2 were just made cynically as a commercial product, so they didn't think of putting in cool details like this.