Five minutes without CPR can easily be the difference between life and death. Ditto for the Heimlich maneuver and other types of aid for choking victims. This policy is not one that I would be willing to obey if someone's life was at stake. I'd also wonder if it would end up being the difference causing me to die if I needed CPR or aid for choking.
Yeah, I tried to explain how 4 minutes without air can leave a person a vegetable, but they didn't care. As far as I'm concerned, if I find someone needing help I'll probably give them help.
-Blast