Well Flex has more complaints than the big three combined. As far as ignorance there is nothing hi-tech about that case that it could not be easily dupped or subbed. Kenwood and Yaesu saw a massive loss of parts sources with Tsunami and many suppliers gone for good and you did not see them discontinue any rigs because of it.
Flex is trying to play with big boys and act like a high roller when they are far from it. They are real good at excuses and BS though. The had a lot a practice with 5000.
A quick web search will find LOTS of complaints on Flex radios. Software and RFI. Likely most RFI prone rig out there. Flex's biggest mistake was being to department on a external computer of unknown standards and a weak link by design.