When you considered that they printed the PCB motherboard with two different ROM socket pin outs (the space wasted!) to cover their bases, and also made it possible to run a single A2000-style 16-bit ROM (note the pins for the jumper option below the lower socket), a screw-up in labeling the code and having the ROMs burned / labeled wrong in production was probably thought of. Remember the 2.04 ROM with the wire for the early A500 models?
