How so?
Avionics are vastly improved over WWII systems. Even Russky ones. Nav systems likewise. What happens to the bomb once dropped hasn’t changed any, but the ability to ID a target through sensors has. By knowing where you are (for real, not just in Syria) and knowing where the target is, there’s no reason to think the Sovs can’t bomb within 40 meters of a target from their planes designed as attack planes. To enhance effects, you either use bigger bombs or more of them.
Based on a few months ago, the Syrians should be pleased, the Russkys will be better than ‘barrel’ bombs were.
“The current accuracy of gravity bombs the Sovs are using far exceeds the capability of WWII systems, there is no comparison.
How so?”
Calling what the Russians doing “dumb bombs” is a bit strong. This is more like “slightly slow bombing” vs. smart bombing.
They are coming in medium altitude, with modern radar and laser guidance. Once released, yes, the bomb can’t course correct, but if the target isn’t moving and the wind isn’t terrible, you will hit (or come close enough) to a large target.