I teach sim in this part of the woods. The number one problem people have is to multiply by 3. If you fly non precision approach, you have to be 300 feet high for each mile from the runway. I know, it sounds like basic. But this is missing these days in airlines. It is considered an advanced stuff. Rwy 09 has only a Vor approach and it leads you to 1050 about 3.5 miles from the runway. Which is ok. But the rest of the road you are on your own. You have to watch papi and your descend rate. And most people forget about the descend rate. If your groundspeed is 140 you have to descend roughly 700 feet per minute.
I think it could have something to do with this accident, but of course, there could be some more factors.