Legally, I'd be surprised. They are re-implementing the FTDI protocol, which is completely legal. They are reusing FTDI's PID/VID, which might or might not be a violation of the USB specs or USB recommendations -- I'm not sure about that -- but I'd be really surprised if that matches the legal definition of "counterfeit" for which customs has the right (and duty) to stop imports.
Legally, I'd be surprised. They are re-implementing the FTDI protocol, which is completely legal. They are reusing FTDI's PID/VID, which might or might not be a violation of the USB specs or USB recommendations -- I'm not sure about that -- but I'd be really surprised if that matches the legal definition of "counterfeit" for which customs has the right (and duty) to stop imports.