Yeah sure. How would i suppose to know they don't know how to shield correctly their stuff aggainst EM noises? Explain me how to i should know they even didn't know how to handle bluetooth driver? These things are basics but obviously it is not for FIIO.
Other already said it - you do research and wait for user feedback before buying. The same way how people find out Apple has Antennagate problem on iPhone 4 and opt for a bumper case. Do you think Steve Jobs intentionally made iPhone 4 flawed just so he could spend time fixing it? If this kind of thing can happen to Apple with their thousands of engineers, then it can happen to any other manufacturers.