Everyone was shocked by Yale's teleportation to Wyba's side; even Aiwai couldn't believe it after seeing it. However, it was obvious that the pig girl had murderous intentions towards Wyba and wanted to avoid her from giving up, so they were glad Yale managed to save her, understanding how he did it was secondary.
Although others didn't have any idea about how Yale managed to teleport there, Sebe thought about when Yale examined Wyba's token and then he remembered that Yale had broken his own token just before appearing at Wyba's side.
Sebe had no doubts that Yale had somehow modified the token at that moment and used his own token to teleport to Wyba's side. Furthermore, he guessed that Yale knew how that training camp would end and thus he said to him to not bet.
Moreover, Yale tried to stop Wyba from participating after wishing her good luck, at that moment Sebe couldn't see it as just preoccupation. In his eyes, Yale knew exactly what would happen and wanted to avoid it.
