I am glad the dive op's name was mentioned. In this instance it apparently makes not one bit of difference who the dive op or DM was, and I don't think anyone (well maybe one or two people) will make any negative judgments about Scuba Mau due to this situation, but when the name is withheld of a dive op whose client dies or is injured, it makes me just a bit uneasy. The last time I was aware of something like this, and the incident details and dive op name were deemed "private," I found the name elsewhere and now, each time I hear that dive op mentioned, I wonder just a bit... Enough so that I might not use them if I were otherwise so inclined.
Yes, some op might have some small discomfort for a little while after it is known that one of their clients died, but that is how an unsafe operation, procedure or employee might come to light over time and thereby save someone (that is unless your faith in government regulation is far greater than mine).
Basically, and simply IMHO, the value to divers from public disclosure of dive incidents, including the names of the dive ops, outweighs the value to dive ops of secrecy.