There is little doubt in my mind that the Prime Minister of Israel is highly motivated to engage in a wider war and drag the US along.
This mass bombing could well be in preparation for imminent further action - such as an invasion of Lebanon. Regardless, the escalation this represents is extremely concerning.
"criminal acts, including against civilians, committed with the intent to cause death or serious bodily injury, or taking of hostages, with the purpose to provoke a state of terror in the general public or in a group of persons or particular persons, intimidate a population or compel a government or an international organization to do or to abstain from doing any act."
If their purpose was really about scaring Hezbollah away, this attack can be labelled as terrorism. I'm pretty sure politicians have different ideas there.