I don't know what the learned Professor is talking about then. The interception rate isn't 4% to 5% by even the most cursory of glances. The destruction in Israel if 95% of Iranian missiles were getting through would have been enormous, not just the few buildings here and there we get to see.
Iran has performed well in other areas but Iranian missiles have not been able to make a dent on Israel the same way they did in 12 day war, so far. The Us and Israel bulked up on ABM to the maxx before launching this war.