I am not completely clear on this but follow the logic for a moment.

It appears the FIA process does have at least one fundamental difference. FIA products (or at least the suits) have their cert stitched directly into the suit. This would imply no label, therefore no fee for the label and therefore no benefit to the FIA if 1 suit or 1,000,000 is sold.

Again, it's just a guess based on some circumstantial evidence but if correct it would imply the FIA is fundamentally only interested in the certification of the initial product line. Whereas SFI actually makes money based on the volume of individual sales and is therefore more eager to see more products sold or life limited and replaced.