Better to read the posts here from the DM/PM/GMs in this forum instead of watching that video.

He's comparing apples to oranges. 767-400 to a 767-300. Like yeah...hurr durr its two completely different products and service.

Also he overpaid for that ticket if it cost him $590... LAX-JFK in D1 on that aircraft has frequently sold for $299 each way Q1 2022.