The last two posts remind me of when I was in Roatan two years ago. My buddy and I were at about 125 - 130 feet with most of our group of 14. We were the second last buddy pair and I checked behind us and saw the last buddy pair waaay below and behind us. I informed my buddy and we watched them to see if they were having any issue, but they seemed to be fine and slowly rejoined the group. They told us later that they had gone to 150 feet (on air) just because that was a goal they wanted to reach and lagged back from the group in order to do it without being noticed (by our dive guide).
If we hadn't checked on them, nobody would have known and if something had happened to them, nobody would have known why they went to that depth or what precipitated the problem. Wherever you have great depths, some people will be tempted to go deeper than the plan or than they're trained for. Poor judgement has a greater chance of going wrong. Only people with excellent buoyancy control and experience, plus who consistently monitor their depth and gas consumption should be doing essentially bottomless dives or night dives, but that is often not the case.
Of course, we don't know what happened in this accident. It seems, though, that Honduras may be one of those places like Cozumel and Cayman where people tend to test their limits a little more than others.