The use of such a report is very much like the use of the 4300+ posts here previously. Not much use if you don't pay attention.
Trust me here. Several hundred crossings of this exact route are speaking.
ANYONE that has flown this route KNOWS about the WX in the Intertropical Convergence Zone. The WX severity that particular night was actually WANING from the 5 to 7 day cycle it usually follows RELIGIOUSLY that time of year.
The Zone forecast for that region was exactly accurate. No one should have been surprised by the WX that night. This crew had traversed this route the other direction a day or so earlier; In WX that was almost at PEAK of cycle.
The other 9 flights that traversed that exact region (all with the same WX reports) within 4 hours all went thru without difficulty.
Somehow these facts keep escaping from collective consciousness every 10 pages or so.