Unfortunately, the people who should be watching these kinds of exchanges are usually absent. Notice that in the scenes displayed of the chamber there were more people (4) sitting behind the witness than in the seats where legislators (3) should be sitting. And those three may not have been legislators sitting up there in the back row.

Too bad, since I doubt any of the legislators sit and watch this stuff on Youtube like we do, so the testimony, no matter how significant, gets lost in the shuffle. I wonder who schedules these things and what it would take to get more pols in their seats. One gets tired emailing these guys to pay attention to things that matter.