Operation wise it makes no sense because when you have to fly that far, the weight of bombs that can be delivered is the same as for Su-24 operated locally (and even less than for Su-34).........In the conditions like those in Syrian skies currently (no air defence, no jammers, etc.) the intelligence onboard the moderns aircraft (hi-pres. navigation, radars, IR, powerful computers, etc.) can well compensate lack of self-guiding capabilities in munitions. Those interested might have a look at the following 40+ years old publication reporting that dispersion is measured in a few tens of meters