Mussywill,
First of all congrats for your wedding and glad that you made it safe and on time back home!

I totally understand the feeling; it is always an incredible relief and joy every time the plane takes off from Doha!

What you said summarizes the reasons why Qatar Airways are unable to provide answers to the majority of the problems they encounter at the airport:

"You guys should get out of Doha and see how the rest of the world operates. It may come as a revelation.
...
And the big issue is that there was no one at the airport able to overrule this policy. And all the QA staff were unable or unwilling to find someone who could."

The culture (total,blind and fearful submission to hierarchy) of the majority of the airline's ground staff, the strict policies, the lack of staff assertive and with authority to take decisions on the spot, the lack of vision and lack of benchmarking with the competitors and the usual chaos at Doha Airport, are the ingredients for such pathetic and substandard service Qatar Airways offers on the ground at the Doha International Airport!