Your reaction at the end is hilarious. What did he say prior to that though? Something about paleo barefoot stuff?
One question though. I used to deadlift in my lifting shoes and I definitely preferred the feeling (stability etc.) so even though I knew it increases my distance to the floor I kept on using them. But as I realized I have short arms (I'm pulling the bar way into my balls) and therefore have trouble setting my back in extension during the setup, I started to deadlift without them. Basically just in socks.
You say that you're not supposed to lift barefooted as it might be damaging to the foot. Does that refer more to the explosive lifts where there's the factor of shock during the landing or to a slow lift like the deadlift as well? Am I safe deadlifting barefoot or should I rather get something likes cons or even stick to the lifting shoes despite my t-rex appendages and trouble getting my back into extension?