I cannot elaborate on reasoning - it's confidential on a need-to-know-basis ...
but it's unless the Canadian C7 Corvette does not recognize the process
for finding how many fobs there are
or you know there is a "lost" key fob ... or any other reason.
I would actually recommend reprogramming key-fobs
to every person who buys a used C7 now
just for piece-of-mind ... the cost is worth it
by knowledge of this gone-in-9-seconds thread alone.
Those are wise words.