It depends on how you define P2W. Many will say that it means gaining an advantage which would otherwise not be obtainable, but to me it means gaining any advantage by saving a lot of time that other players have to spend on. If you were to join a new P2W game very early on, the people who spend a lot of money will obviously have a huge advantage because the F2P players didn't have enough time to grind the better stuff themselves to compete. Pretty much everything in WoW is obtainable by using real money which is also why this boosting meta has become a cancer. I'm leaning more towards the game being P2W, its just that it knows how to hide it better than most other games.