This is very sad.
I hope the investigation recommends the use of a discrete CTAFrequency. I’ve only flown into YCAB about a dozen times, but it’s difficult to build a situational awareness of the traffic disposition. Lots of over transmissions between aircraft at YCDR, an Aerodrome with a similar sounding name, and similar runway layout, complicated by aircraft using conflicting traffic patterns. In fact, the last time I flew into YCAB, with a loaded 11 circuit, SPA taxied out and departed off 06. It certainly raised my eyebrows. Whenever I go in there I tell my passengers to keep their eyes peeled 👀