Many Israelis are from Eastern European backgrounds, and it's plausible that they may have inherited some military culture from there.
Missiles are extremely expensive and you’ll soon run out of them during a long war of attrition (especially in a symmetrical conflict like in Ukraine)
Culture has nothing to with that.
Disclaimer: I consider leveling cities with the goal to displace people to be disgusting, and a borderline war crime. Regardless of the parties or reasons involved.