Those are literally watched by automated and remote control machine guns, as well as 24/7 surveillance drones.
So you’re military strategic insight is to sit in an open field, just outside of range of the remote control 50 cal turrets, and wait for the drone to drop a PGM?
Feel free to browse my comment history. I’m no apologist for terrorists acts, but I’m also not blind to the realities on the ground, and what obstacles any opposition militant group within Gaza would have to plan around.