There was a reason why Eddy was upset with Shingi when he had transformed during their fight. It was because before the matches had started there was an agreement that had been made. That they were not to use their Altered forms.
The little spar wasn’t just to help out those from the facility but the others as well. If they were truly ready to enter the AFC with a bang and the impact they wanted, then they should have been able to beat these guys without having to transform.
However, the last time Xin and the others had fought, the top three fighters at least had to use their transformed states, it was inevitable otherwise they would have lost. That was when Eddy had agreed with the others this time he would give them a signal, a signal for when they could transform.