@georgia It was a proper war though, most of the deaths were in combat or upon the fall of the military stronghold bar kochba erected, and collateral was because of the loss of supplies and manpower from the battles. They just went all in dedicating every man and resource to the war, lost, and ended up with nothing left of what was gambled. Prisoners of war were sold as slaves, which isn't very nice, but was the standard for the era. The revolt was also started by the side that eventually lost, not a Roman initiative to escalate after already having defeated the region's military in the second war.
The problem with total war is that you either win or cease existing.