Yeah, that was confusing for me as well. I was trying to join the vertices after deleting the ngon face and it wasn't working.
Thank God for other people asking questions. I couldn't for the life of me get 'J' to work as in the video either (without a face). Andn thank you for the video. I'm kinda skipped around this learning flow and landed here. I'll get back tot hat plane eventually Mr. Williamson. lol
