IMO they should have released a work around for the MFC101 that would make it work with the 3 and have the IA lights reflect on off status and such. This would not prevent people from buying the FC6/12 when released because most will want the scribble strips and main reason for buying over keeping the MFC101. I know they say different code, but maybe they could have written something to work that would sufficed for a band aid until the FC was ready to party?
I have no coding background so I'm speaking out my ass. I just hope this wasn't bypassed because they were afraid they wouldn't sell as many FC's when they came out. If the FC's were ready to ship, I would see that as fine. But given the 9 month delay, it has caused them to lose 3 sales. Yes I'm sure they are fine money wise....just say'n.
That'd take, at the very least, hundreds and hundreds of man hours, assuming it'd even be possible. It'd likely be a spectacular waste of money and resources so I doubt it has much to do with how many FCs they could potentially sell.