Fair criticism, and every so often, every company builds a dud version of an otherwise good bike. My response is as follows:
Get your hands on the recent CYCLE WORLD comparison test of a DB7 and a Bayliss Replica 1098R. The Duc was actually more expensive than the Bimota and, despite a larger and substantially more powerful engine, the Bimota was only a hair slower on the track and, on the street, the different ECU focused on mid range more than top end power, allowed for better street response.
The tester observed that Ducati put its money into the engine while Bimota put their money into the suspension. I agree as the DB7 is my Superbike ride of choice (sold off the RC8 that had filled that niche) since I found the suspension capable of being set for very, very precise riding both everyday and when I revert to my teenage boy racer days -- we have some very good, winding and challenging country roads here is SE Wisconsin.
I have had no issues the Extreme Shock at the rear. My 'local' Bimota dealer (Bob Steinbugler in North Carolina) set it for my approximate weight and riding style and I had no problem, following directions as to how to adjust it, fine tuning for my precise taste after the first few hundred miles.
I have not had the QC issues you mentioned, nor is my experience with Bimota response been the same as your friend's. I received Tesi 3D serial #03. It developed a leak in the billet clutch master cycl. Bimota not only air freighted a replacement, but replaced the fuel tank entirely when a bit of clutch fluid had chewed through the clear coat on the left side. They also paid the bill for the local Ducati dealer to pick up, fix the bike, and return it.
Part of the problem in Oz may be a lack of local distributor and distance from the factory. Or perhaps it is their attitude. I know that I have had several very nice conversations with them, they seem genuinely in customer satisfaction, and the US market. Other owners of recent Bimotas here in the US have had a like experience.
So, perhaps your friend simply got 'a lemon.' I am sorry for him that there is no support and would have the same view of the marque as you if the company was ignoring our market in the same fashion. Hopefully that will change for you and the other folks in your country.
Sorry to hear the tale, but again, it does not seem typical of my experience or those of others here. Dave