FFS Sunfish. Having an overhaul facility doesn’t determine a carrier’s value as a strategic asset, its the lift. Next time there’s a disaster abroad who do you call to repatriate Australians? GE or Rolls Royce?
The lack of overhaul facilities is a reflection of the engine builders' policies and controlling spares availability. Most airlines buy thrust by the hour and hence don’t need an in-house overhaul ability even if they could get parts support.