Yes it was luck for Juventus to get a penalty at the last minute and managed to block his goal by Ronaldo
It was a really luck match for Juventus as they got a pentalty in the final minutes of the extra time and Cristiano Ronaldo scored the crucial penalty and took the team home.
This is really the second time that Juventus have been lucky. In the previous week, they drew and at the same time Inter got a draw too. In my opinion it is luck for juventus.