I addressed the clutch issue in the other thread, but for the sake of this thread, the Austrian Rotax 800s were SO MUCH WORSE. Oil leaks can certainly go against the builder, so I'll give you that one. Cold start again has nothing to do with the engine, it's an electrical issue and from what I've read it's present in many of the S1000 models as well which puts it squarely back as a BMW in-house problem. You can only blame assembly issues w/in the engine itself on the builder, everything else is a design choice or programming issue from BMW themselves especially since the actual bikes are built in Berlin, but considering that Loncin has been building engines for BMW for almost 15 years now, I think we're past the point where we can blame them for issues vs BMW for their QC practices.
All that aside, I'm still really happy with my bike and have enjoyed every mile I've put on it.