Visa on arrival

Immigration Minister Petrus Thomas I am asking you to consider easing up regulations on visas on arrival for short-term stays in PNG as they hinder tourism, an important source of income for PNG.
I am a German tourist currently on a round trip through several countries in Asia-Pacific.
I was looking forward a lot to staying here for two nights but due to a mistake by Air Niugini, I only had five hours and 20 minutes here before my connecting flight to Manila departed.
That was short but would have been enough to collect my suitcase, leave the airport, go to the National Museum, take a taxi ride around the city to Ela Beach and back to the airport.
At least I would have had some impression about Port Moresby, and get some appetite to come back in the future for a longer time.
However, I was denied a visa on arrival because I was staying here less than eight hours.
This is really disappointing to me and should not be in your country’s interest.
I understand that this is a very frequent complaint by tourists stopping over at Port Moresby airport, so I am asking you to consider changing the regulations.
If, as a German citizen, I can stay here for 60 days without any issues, staying here for five hours and 20 minutes should not be an issue.
Enjoy your stay in Sydney, Mr Thomas, as staff here told me that is where you are currently flying to.
I am looking forward to your response and best regards from Port Moresby airport.

Kay Schlette
Germany