There's nothing new or odd about the latest tragedy in the Eastern Caribbean yachting community. Reporting has definitely improved over the years, but since the governments of the EC nations have outlawed hanging, serious crimes, especially to visitors, have increased considerably.
I don't have the energy to list the myriad of such incidents that have happened since I began my circumnavigation in 1970 however, if you remember, even Joshua Slocumb had to come up with some pretty creative ways to keep intruders off his boat. But if you look at the overall numbers, since GPS entered the cruising sector, the numbers of those cruising around on yachts has increased many times more than crimes against cruisers.
Personally, I'd much prefer to take my chances of being a victim of a crime, rather than go back to the uncertainties of the weather and a good fix when I needed it, using celestial navigation.