D & D themselves say that there is not a problem. What's the matter, can't you read?
I think I see one of the reasons for the differences in opinion. D&Ds primary task is to monitor the emergency frequency then take action should it be required. The commercial pilot, however, is trying to manage the flight, interact with ATC and keep a 'listening ear' on 121.5 as a sub-task, so there is much more opportunity for distraction. The two situations are not directly comparable...