Its obviously a training flight, and the other people in then flightdeck are most likely other trainees.
When you've done a new typerating and are doing the circuits it's normal that the airline will load a small group of new pilots onto the aircraft so they can do their circuits on the same training mission - saves the company money. While someone is flying, it's normal for the rest of the group to observe.
This isn't necessarily indicative of how this particular airline would operate a revenue flight.
In actual fact, after watching the video, the trainee had control taken off him during the flare when he was not being positive enough about getting the aircraft down. Embarassing for him undoubtedly, but it's very likely that was the first time he'd ever landed an A320. I'm sure the next one was better - under JAR it's a requirement to complete 4 to 6 landings with a TRE/TRI
before you can apply to have the aircraft added to your license and begine line training on revenue flights.
That said there is a lot of chatter, but not speaking Turkish I have no idea if some of it is relevant to the operation of the flight or the training, or not... Can't have made it easy for the guy in the hotseat, don't think I'd have been happy!