This is just the same old crap we used to put up with when I had the misfortune to operate MD 500D's. I suspect that for the majority of you operating the 900/902 it is your first experience with this manufacturer.
The current problems seem to be even worse, but the basic problems have existed throughout the history of the company whether it was MDHS, Boeing or MD Helicopters. Terrible product support and parts availability. Problems that go on for decades and through a vast number of modifications, redesigns and poorly thought out fixes. A massive collections of AD's. And yes, annuals that take longer than any other helicopter that has ever been built!
I wouldn't operate any of their products if you gave it to me for free. The happiest day in my career was the day the last of the little POS flew away to become someone elses nightmare.