I have no problem with using whatever you have handy in an emergency.
What I have the problem with is people who use duct tape TO REPLACE medical care. Like sticking it on your axe-gashed shin, then going home and leaving the tape on until you notice red streaks running up your thigh.
And don't say people aren't that dumb. Lots of people are that dumb. And some are even dumber.
Use duct tape for its intended purposes: sticking ductwork together, wrapping packages, and adhering very active small children to walls when babysitting.
Sue