You're upset that a high performance engine died after 7 years of service?
Have you spent any time talking to owners of WRX imprezas with this same engine? I think you might find different expectations.
I'm impressed that mine hasn't blown up, but I know it's coming and I don't think I'm bringing unrealistic expectations. I've got 130,000 on it now, and with continued maintenance, stock power levels and some luck, I might see 200,000. But maybe it will only be 130,001. I still drive it hard and get out smiling every time. I'm still interested in modding it for more power, even though I know it will further shorten the life of the engine.
I think Subaru already realized the problem: people were expecting the kind of reliability the old 2.2L engine gave, from a car built under much more strict emissions laws, and optioned with an engine that gives double the power out of essentially the same block. Something has to give, eventually.
Subaru no longer offers a turbo outback. Now they offer a honkin' big 6 cylinder engine with more or less the same output. It's big and heavy and strong and dumb by comparison, but it has a much better chance of showing the same long-term durability as the classic 2.2L. As much as I love my XT, I'll be the first to admit that the H6 is a better fit for the average outback buyer who wants a little extra butter on the biscuit. By now we have all had years to consider trading in for one, or getting one in the first place.
I will agree with you in that too many engines are being ruined after a turbo replacement. Something is up with that. Personally, I suspect that nobody is spending the time or money on forensic teardowns because money was so short in the first place- so we might never know what the cause is. Would you spend $1500-2500 to have a qualified machinist disassemble your engine to pinpoint the cause of failure knowing that not one dollar would count towards actually fixing the car? ...And may not even yield conclusive results? After reading the same blogs you are, I've realized that I have a choice. If my turbo shreds, I can replace the whole car, replace the whole engine, or just replace the turbo. Only one of these three choices has been documented by numerous others to carry the risk of subsequent engine failure. And when it happens to me? I might very well roll the dice on option #3 myself.
I'm not out to defend Subaru here- I think they've made some pretty dumb choices along with some brilliant ones. However, it is my opinion that your petition is a waste of time that could better be spent elsewhere. I think they've found the problem and fixed it, but not everybody got the memo.