Ideally you would want to survive your encounter, and getting close enough to throw the bottle on the target while conspicuously holding a bottle with a lit wick definitely reduces your probability of surviving the event.
steal or make your own filler for the container and with a few hundred feet of wire you can fire off the countermeasure and have a reasonable chance of not getting shot in the attempt.
Who said anything about doing it alone. Bring a friend...or 20: https://www.youtube.com/watch?v=r6Eaqfi6gZg