Yeah, that came to me as surprise, because it's wild that there's countries where you literally cannot buy or play playstation? And that even though it's listed as requirement on Steam store page, they still allowed people from these countries to buy the game to begin with?
But still seems that majority are angry about requirement and using the unavailability on selected countries as shield to push their anger through.

Its because PSN not available is some countries, so now some people are unable to play the game they have purchased.