In a go around, unless there is some dire emergency/multiple failures, a good pilot will inform his passengers. All it takes is a very brief PA.
I agree the priority is to fly the aircraft, but if a Captain does 2 go arounds, and never says anything on the PA, IMHO he doesn't have what it takes to have 4 bars on his shoulder.
Prioritise by all means, but don't ignore!
Evy