Vincent,
Agreed. You can't take it away from them they carefully DF'd the location by taking an exact GPS fix on the block houses, which sadly cost the lives of the two SEALs on the roof and other casulaties.
The Ambassadors death was a completely different matter, clearly things went wrong there, and its easy to criticise from an armchair, but the "citadel" was the wrong location within the building with all that combustible stuff around them and no other alternative exit to consider.

The film brings out some really useful issues for those working abroad on CP of contractors to consider.
I could see the station Chief's reluctance to commit his manpower to the location being attacked in case of an ambush, but they at least had the support of drones above that they could have used the vital intelligence they transmitted to ensure the path was clear, and perhaps history would have been different!!