as far as I’ve understood it, the main issue of the account lies in the fact that the game has been sold on regions which either cannot make a psn account, OR are allowed to link their steam account to the PSN account.

So basically, for quite a few people this means the requirement will lock them out of the game. Sure, VPN’s and linking accounts outside of their home region is apparently possible, but then they run the risk of getting their account(s?) banned.