Well I queried the extremely pretty cabin crew medical trainer today about cabin crew recognition of decompression/bends symptoms. I regret to say there is no mention of it in training or any instruction given of what to expect. In my long career I have never been given any information about location of decompression facilities on any flights, or even been advised of any in NOTAMs.
Perhaps we need an official body like the British Sub Aqua Club or the PDSA (or whatever they are called!) to approach the CAA and try and find how many divers have actually experienced difficulties on UK airlines to establish if it is a problem. That climb the divers did was equivalent to the cabin altitude of a cruising jet. It doesn't appear to me to be much out of order!
Could you perhaps explain: in aviation we do all our work in the band from Zero>1 atmosphere. In diving you go from 1 atmosphere>what ....3 or 4? Does it really matter much if a person goes from say 3 atmospheres>1 atmosphere one day, then next day up a 7,500' hill- ie from 1 atmosphere>say 60% atmosphere? It doesn't seem like much compared to a deeper dive.