A similar thing happened in every tower and to every single trainee that entered the tower.
Dozens of people trained for a couple of hours before they were kicked out. They almost felt like they are brand new people when they came out of the tower again. The new techniques that were imprinted in their heads are all they could think about.
So, as soon as they came out, the faction members tried to send them back in, but after realizing that they cannot do that, the candidates who finished a round of training in the towers were sent to the front lines.
And most of the time, they are distributed towards the other fronts where the pressure is maximized and since in their opinion the pressure on the coastal side is far too less, they didn't bother sending anyone there for the time being.
Meanwhile, back in Sam's room, he is still sitting the middle of the formation and his mind his hovering in the soul world.