Firstly,to have 28'000 hours you would have to have been long haul for many years where you max out yearly because of the long international sectors.
Not necessarily. I recall many PNG domestic pilots maxing out every year at 900 hours, resulting in early annual leave. I know of a number of retired PNG domestic pilots with over 25,000 hours, all flown within PNG.
But I agree, there may not be many PNG National pilots with 28,000 hours.