To be fair, this seems to be the norms for all new releases published by Square-Enix. Hitman, Deus Ex, Final Fantasy XII and XV, previous Tomb Raider, Dragon Quest, etc. They all follow the same pattern where 3 to 4 weeks after release they will already be on sale up to 50%.
That can even be true for PS4 games, I remember FFXV being 40$ even 3 weeks after release (Physical on Amazon). Noticing that trend, I stopped buying SE games on release OR to be fair, you can probably get a permanent 25%+ discounts on legit 3rd party websites too for steam keys.