I read the original post as being a criticism of elitism among divers who seem to feel that divers who only dive in warm water once or twice a year while on vacation should not be diving. Sure many divers get more enjoyment from their dives when they have improved their skills. Sure many divers get more enjoyment from their dives when they challenge themselves. But most divers don’t have that luxury and are lucky to be able to do their one or two dives a year. Of course, those divers are at greater risk…even on a very simple dive with lots of supervision. Some of that risk can be mitigated with careful monitoring by dive masters. And, while I don’t have any hard data, I’d expect that it is these divers who keep the manufacturers, resorts and dive boats in business. There simply aren’t enough 30+ dives a year divers to do so. So, the bottom line is that the original poster was suggesting that we lighten up on the once-a-year divers.
We should also keep in mind that there those who think that anyone who is not DIR should not be in the water. So don't cast the first stone.
Now, before anyone even thinks about flaming me, know the following: I strongly believe in elitism. Therefore, unless you can dock a boat both sail and single screw in 20 kts of wind, splice a line and work a sunsight out of the Air Almanac and HO249, your flames fall on deaf ears.