See I think the problem is that you're not looking at the whole picture. You're just looking at ATR in the context of "will it stop any particular gank from happening?" And you rightly identify that the answer is "no". But when you take a step back and look at how all of this figures in with the bounty/rebuy system, the prison ships, the progressive offsets and increases to rebuys (for victim and perpetrator respectively), the notariety system, the restricted System Services via anonymous protocols, the restrictions and challenges that go with "hot" ships and modules; what it will almost certainly add up to is LESS ganking overall, and a concentration of that behavior to Anarchy systems and their immediate neighbors.
We'll see how well people are able to exploit/loophole their way around the system when the beta hits soon, but so far this is one part of the update that I am very optimistic about, and impressed by the thoughtfulness that has gone into it.
I agree the focus of OP was probably a little ATR-centric but the point is still valid either way: the general direction of C&P is towards removing all hope of a game where crime is a valid gameplay choice.