Look,
Qatar Airways like any other airline in your area is a status symbol of the operating country, its expansion and success reflects the growth of the said country and its perceived importance in the world picture.
Rapid expansion, new and latest aircraft types being ordered are perceived to be part of that picture of growth and growing importance.
The general travelling public are impressed and take advantage of the nice new and shiny aircraft and high quality in flight facilities, attractive, young and well presented cabin staff. Not forgetting the high professionalism of the crews operating the aircraft
It’s the hidden cracks in the system that concern, hence my comment previously.
Without defence in depth, sound and experienced management and a refusal to bow to political pressure in the selection of competent staff, you are failing your uninformed and generally trusting travelling public.