Well, here is another point. I would say that 95% of the time there are 2, 3, 4 or even more divers on the surface in a group, minimum two buddies. We are usually talking about the dive, making a plan or preparing to submerge or surface swim to the shore or boat. Even under these conditions I have heard the moaning and groaning about the mask position. Why would ones brain even drift towards a distress situation under these conditions? Way too strict a "rule".