Not going to lie, needing a PlayStation account feels pretty unrelated to the actual game to me. Akin to complaining about how something shipped on Amazon instead of, you know the actual product.
Your difficulties with needing a PlayStation account, like shipping, is going to wildly vary depending on location.
Also the app is probably built on a mountain of dependencies all of which have updates and security patches and bullshit. Delaying those updates for too long makes finally making a real update a nightmare, so you occasionally release updates just to keep up.