I don't think so. I may not be knowledgeable on bike design but what I do is look at track records and have to say BMW's stacks up pretty well in all their various adventures - particularly in motorbike design - unless you're telling me they copy everyone else's ideas there too. They say they own the design team and presumably employ qualified people who also design their new motorbikes.You're very naive. .
At the end of the day if they simply copied or use inferior products then they have a great deal to loose and reputations take a long time to rebuild. I bet they will still be around in 50 years or more which is more than I would put money on some of the cycle manufacturers (or dealers).
I'm not saying these BMW bikes are the best thing since slice bread neither am I saying their design and looks are great but I do think they would be safe and reliable - AND they offer 2 years parts and labour warranty valid throughout Europe how many other bike manufacturers offer that?