I'll take an accurately placed 9mm over badly placed .40 or .45 any day.
I'd say this is a fair statement, and I agree with you. I'd also tend to hope that the first shot of any caliber would be just as accurate as any other given the same situation. This is obviously because the first shot has no recoil recovery to deal with before pulling the trigger.
That said, I like the idea that my first shot fired to defend my life would be a .45 ACP with the same accuracy as if it were the first shot of 9mm.