It wasn't often that the team was at the end of the referee's bad decision twice, especially when both were quite big moments. One should have resulted in a red card, and the other was a big chance that was so close to a sure-goal chance before it was deemed offside.
Any normal team would be shaken off when facing this situation, let alone a bunch of teenagers who were still hot-blooded. They were not blind here. The boys could see that while the referee was still quite fair in small decisions, once it mattered the most, the man would protect Italy at all costs.
This was enough to make them overthink, wondering what kind of eat-shittery decision-making the referee would pull later to help the opponent tie the game. This thought was enough to eat them alive, making them lose some concentration on the pitch.
