100,000 is just the initial downpayment.
You still have to destroy the IIRG, the armed forces of Iran, and the high technology sector. Oh, and obliterate/burn out the civil communications grid as well.
The author talks about creating resentment. A proper campaign (multiple attacks) will create resentment alright; resentment at the self-deluded government that exposed them to all the resulting destruction of property and lives.
Either go big or don’t go at all.