Why Developers Leave Crossplay Forced on PC
Matchmaking Speed: Combining all platforms ensures quick queue times, especially during non-peak hours or in less popular game modes.
Player Retention: Larger player counts prevent lobbies from dying out quickly, which helps maintain ongoing revenue from microtransactions and DLCs.
Default Assumptions: Developers often assume PC players have the native advantage of a mouse and keyboard, meaning they do not "need" protection from console controller lobbies in the same way console players might.
Money is the reason.