As planned, Theo began to come to each venue, discussing their abilities. He even gave some personal advice. Though, he also had to tell them that they had to choose whether they would trust his judgment or not.
After all, he might harm them without them realizing it. So, they had to be careful.
Even though he gave all those pieces of advice, it didn't change the fact that his lesson was extremely valuable. There were a lot of people who got a small breakthrough in their abilities.
They could come up with some new ways of utilizing their own ability. Even if they didn't reach the next stage, they still got something big from this lesson.
They became proof that Theo fulfilled his side of the agreement. So, they couldn't say anything otherwise.