As a resident I was fingerprinted only once on Arrival (no photo) several years ago       ( about 5 years ago) coming through TNR. After that I was never finger printed again on arrival and never on departure. My last departure and return to Madagascar was 2016 and was not fingerprinted.
Odds are your friend will not have any problems because the airport rules are inconsistent, untrained staff and the right hand not knowing what the left hand is doing. All a great advantage to the traveler who is flexible to the meandering flow of the system of loose government.
I have stood on line waiting for entry or even next at the window when the police officer is handed a stack of 4 to 7 passports, through a side window by a enterprising airport worker or travel guide and I will wait for those passports to be stamped, those people unseen and those people were also not fingerprinted.