i think, it's a nice ' chellenge' to search and translate the coordinates from the peace of paper to the map. However, seems like there are not that much different randomized spawnpoints for the crates - so, who often plays, will quickly know, where the potential FIA crates are. Additionaly some of the crates are even hard to reach with cars for resuppling (i.e. Everon/west of Regina) not to mention resuppling with helicopters is close to impossible but actually don't need to be).
So I see less a problem with marks in the map instead of the shopping list but see an issue with the ammount of randomized spawn points for this crates.