Yeah, but Wedding Planner 1's deep vitriolic moral hatred of the lemon chiffon cake that delights Wedding Planner 2 that abused her as a young girl or Wedding Planner 2's thunderous personal objection to the enslavement of his family that went into making the cocoa for the devil's food cake that Wedding Planner 1 adores could easily make them refuse to share said delicious white cake with raspberry buttercream to the point where either would very happily destroy it to prevent the other from getting any. This seems suboptimal, though.