Not at all. Alfursan routinely shows no availability whatsoever when you try to search for a route not served by Saudia, for example any route within Europe. If a Saudia flight is not included in the itinerary, then there will no availability at all. I have been trying to redeem on Aeroflot (SU) and it has been beyond frustrating. For a start, Alfursan doesn't recognize where I want to go, Samara, either in name or by airport code (KUF).
If what you said really was the case, it would be wonderful, I use the miles and be happy. I would love to be proved wrong... maybe the site works better in Arabic?