Gaza is a feint.
The real war is with Hezbollah in the North. The Gaza feint is to cause IDF invasion of Gaza thus reducing the military strength against Hezbollah.
Hamas is being killed one bomb target at a time
I do not see any real reason to rush into Gaza. Hamas is contained. A hasty ground invasion will just cause more death and destruction of children. Leading to more negative press/protests against Israel throughout the world.
Surgical strikes and special forces could eliminate most of the issues.