I emailed SW about this as the magazine was full of ads for it saying it was 2 cals per spray, and SW say any cooking spray with 2 cals or less per spray is free, but it's in the food directory as 1 syn for 4 sprays.
They got back to me saying they would go back to the manufacturer and review the nutritional info as if it was really 2 cals per spray then it would indeed be free. They also said they would let me know but I haven't heard anything yet. They told me to syn it in the meantime to protect my weightloss.
I did notice though that the ad was not in the most recent magazine! Coincidence maybe.
I can't use Frylight either so have continued to use the oil spray as free, but I try to use the minimum needed and accept that this may be slowing my losses, which are slow anyway. I certainly wouldn't suggest that anyone else follow my bad example.