This sounds pretty ridiculous. Obviously the operator knew the divers had the potential to end up in the surf zone, but they had no way of dealing with that eventuality?
Why on earth did they not have a long rope and a float? That would seem to be the most basic components of safety gear.
Yelling at people who are in scuba gear, while they are getting hammered in the surf (who have no visibility to see that they might be able to swim a hundred feet laterally out of the break) is very unlikely to have a successful outcome.
When it was obvious that the couple needed rescue - where were the rescue divers/ instructors? Why did they not snorkel into the surf zone and help them? Why endanger the whole boatload of people instead of involving the professionals on the boat to help?
Is the OP a dive instructor? Why didn't he go to attempt some in water assistance and provide, at a minimum, some surface floatation when it was obvious the diver was panicked and in trouble?
If I were in that situation, and on a boat which had no lines to swim to the divers, I would have snorkeled to them with one or two life jackets, made an attempt to tow one at a time laterally out of the surf break and if that wouldn't work, then srtrip their useless tanks and (f'n) camera gear and start hauling them to a point where they could be safely picked up, one at a time if there were no other swimmers. Well at least that is what comes to mind immediately in the situation described.
The lessons learned from nearly losing the boat and endangering everyone on board is certainly not to apologize - LOL
Perhaps lessons learned might be:
The boat should have a plan for an entirely foreseeable screw up
have a safety rope and some kind of towable surface float.