huh? He used a combo on the second turn, it is totally legit. The CAP ASB guide says that:
Every move in a combination attack counts towards the three action limit per round. This means that you can't combo four moves into one action, and you can't launch more than one two-move combos in a single round. Effectively, during action one of a round, you can launch a three move combo, a two move combo, or just a standard action. During action two, you can launch a two move combo, or just a standard action. During action three, you may only launch a standard action.
Meaning that he can indeed use a combo move on the second action, as he did. Nothing wrong here.