It's not just the PS4, it's also for the PS3.
I have no idea why they got rid of this feature. The first thought was maybe something to do with the network being buggy at launch and EA wanting to lighten/lessen the load until people start leaving the game.
I don't think that's the case anymore. So my second idea is maybe EA wanted to make Battlelog more prominent somehow. But I see no reason why they couldn't have just integrated a squad setup within Battlelog.









