I agree, BF4 on the PS3 was L1+R1 for sight and trigger- So it's just for the PS4 edition of the game. Other PS4 games have the option to flip the presets, so why dosn't BF4?
I'm not a paticulary melodramatic person, nor do I post very much on the internet, however this is a highly frustrating change, and I think all BF4 gamers (loyal fans and new users alike) would like to see some acknowledgement from EA or DICE about this issue, or at the very least, some clear justificatrion as to why this change has been programed into the game.