Sounds like a massive waste of time/money to me.
First session is always a bit slower anyway... track may be a bit slippery in the early morning, your tyres aren't at the right pressure / temperature. So I always use the first session to cruise around and warm things up, get re-familiar with the track and then I come in, immediately check tyre pressures and set them to where I want them to do... Then Session 2 is my first actual fast one.
Might be worth going along to a day like that if it is 30 cars and heaps of track time, or they have professional instructors who can show you the fastest lines