Hey morno,
Think you need to quit the rant and take some of your own advice.
The aircraft WAS below 3000', and that's why this occurred because the VFR aircraft had every right to be just below the cloud.
Additionally, a normal profile for an RFDS pc12 is a 2 to 1 (although 3 degree approaches are not uncommon), which actually increases the number of question marks about why the pc12 was down there so far out. That said, the same incident could have happened irrelevant of the distance from the field.