If they were granted this, it would open the floodgates every time there was a disputed decision.
For once FIFA have got it right.
c'mon boys, wrong ref decision have been part of football ever since a man-in-black blew a whistle and will be in future. Rub-of-the-green or as we in Austria say "kismed" (a hebrew word for fate).
I hear the FA were planning to appeal the result of the 1986 World Cup semi final had the Irish been successful with any of their appeals...