Neymar was deemed only ready for a 14-minute cameo from the bench after returning from his post-World Cup holiday as left-back Stanley N'Soki provided a pair of assists.
And Tuchel, who replaced Unai Emery at Parc des Princes, was delighted with the way PSG approached their defeat of Ligue 1 rivals Monaco in difficult conditions in Shenzhen.
"We are very happy," Tuchel told reporters. "I am very happy because we won our first final.
"It is fantastic. We won 4-0, it is incredible. And we deserved it. We won. We played as a team and I loved that.
"It was a very young team. And the circumstances were very tough, it was very hot.
"But we played with intensity, with a lot of intensity, and we played as a team. It is great."
A thumping defeat was a chastening experience for Monaco, with coach Leonardo Jardim feeling his side had made a strong start before falling to PSG's extra quality.
"I think there were two parts in the game. During the first 30 minutes, in the first half, it was a balanced game. We were more organised than our opponent," Jardim said.
"But our opponent has a lot of talent and they managed to score the first goal. Then it was very hot. We had a lack of intensity. So it is fair. Paris were better than us. They showed quality, they controlled the game.
"As I said, in the first 30 minutes, we showed energy and solidarity, we had a balanced game. But then Paris did what they wanted."