Quite interesting to read this about Flaps40-Landings with the good old 737 (which we here lovingly call the Bobby)! During almost three decades of Bobby-Flying most of my Landings were - and still are - 40s, never experienced specific difficulties. Actually are much more controllable than 30ers.
Would Bobby be a Classic then? 737 NG's are very roll sensitive with FL 40. It is very easy to over control and even PIO's are not unusual in gusty conditions.
I'm simply amazed they would fly into Mogadishu in the first place. I've flown over that city a number of times, and I have never seen any aircraft on ground there. Even the HF operators were sitting in Nairobi.