Amy is too strong but the problem is not 2B+K, it's her insane wildly out of control oki. She never has to take any risks, she's never in danger on whiff, teching is always super dangerous, rolling rarely pays off, standing exposes you to mixups... it's a little too much. I don't claim to know the solution. Also I think her auto-parries should be toned down only in the sense of the delay between the parry and the move should be increased. It should still be guaranteed obviously but that way it's easier to catch her when she whiffs the auto-GI.