Good reminder. It looks like Kirito confirmed that in episode 4 when he confronted Rosalia on the bridge.
I'm glad they got back to Vol 1. Finally some good action and Gleam Eyes looks impressive.
The head of the PK guild with his blue scar/tattoo makes another appearance. We might see more shenanigans with his guild soon. If it's like some of the motards I've seen in MMOs then an ambush at the most inopportune time is in order.