Quite right, John.
I was just trying to make the point that differences in operator's attitude will have a bigger impact on your chances of a safe flight than relatively minor design differences, like number of engines.
To follow up on TeeS's post, there are lots of well documented cases of simultaneous engine failure on 2, 3 and 4 engine airplanes (usually operator error). At the same time, guys like E. Moose are doing safe single engine commercial ops day after day.
It's not how many engines you have, it's what you with them.