Before you all right off Nigerian Aviation as being totally unsafe, there are two operators that have the confidence of expats and locals alike. Both have had a heavy input into their operations by European owners and operate to European standards. Potentially there is a 3rd airline starting this week which has also had European input, though the two highest placed guys have just left a couple of days before the first flight which is unusual to say the least!
For sure the Govt. provided infrastructure is in a very poor state both in its modernity and its upkeep, and in a country with the wealth that Nigeria has this is bordering on criminal neglect. I also have pictures of ADC aircraft taken early this year (but I cannot upload them), and they show clean and outwardly well maintained aircraft, not aircraft that are out of service and suffering the effects of the high humidity, but then they wouldn't fit the wanted impression would they.
COndolences to all those affected by this disaster