Complacency is probably right. I saw lots of dead female IDF in the videos I saw coming out of the bases, also lots of dead half dressed soldiers in kit, meaning they were caught unawares. I also saw a lot of dead IDF inside their barracks.
The nature of ground combat ops has changed dramatically since RU/Uke…. As an example, the grenade dropped from a $1,000 drone with precision is insanely effective against armor and personnel. Granted, Gaza is extremely urban, but Hamas obviously knew they’d be inviting a large IDF invasion. It’ll be interesting to see the tactical shift. It’ll be gnarly for sure.
Perhaps Israel will be smart and not do what Hamas expects.
Hamas expects Israel to send people and vehicles into Gaza, where they can be targeted by drones.
Hamas may not expect Israel to stand off and pound Gaza infrastructure with Israeli drones. No power. No sewer. No water. No phones or internet. Send them back into the stone age.