At first I honestly thought this was going to be another one of those classic rage rants from someone who did not get their choice of chicken noodles and decided civilization had collapsed. But wow. This actually sounds pretty bad. Sorry you had to deal with that circus.
What I have noticed with the ME3s, and especially with Etihad, is that while the onboard hard and soft product can be great and while their call center folks can usually sort out the basic stuff without breaking a sweat, the moment something lands on their desk that is even slightly outside the sacred procedure manual, the entire organization seems to enter full seizure mode. Every team starts playing hot potato with the blame while silently praying the customer will finally give up and disappear.
I do like Etihad and I still fly with them. But I always have that tiny voice in the back of my head whispering that if anything happens that requires them to think beyond the script, I am probably in deep sh*t.