Thats not correct at all. No game needs to be PVP in order to be multiplayer, if you can play together against the npc or for the same goal thats multiplayer as well. It has been like that ever since you could have picked luigi and someone would play mario and you would do it together to beat the game and find the princess. How do you really think multiplayer work? I mean even on smaller games like stardew valley you get together with your friends and you end up farming and mining together. This is the same idea, you play together with other players, same game, same crash and multiple people. That is how multiplayer works. There is no requirement for PVP at all, no need for it and its just an addition not a must in the sense of online games. By your logic getting 40 people together and doing a raid to kill a boss is not PVP in world of warcraft, only thing that makes it mmo is the PVP fights...