They don't want to. They have chosen their path. It's likely they don't even recognize the advantages of player-based server hosting (moderation) that they thre

They don't want to. They have chosen their path. It's likely they don't even recognize the advantages of player-based server hosting (moderation) that they threw away. Their biggest motivator is planned obselescence. By monopolizing the server software, they can eliminate (or shrink) the player base from an older game during the release of its sequel. For example, Battlefield 4 has a thriving online community (with player-hosted servers), but its sequel Battlefield 1 definitely struggled to keep servers full during the release of Battlefield 5.