This data shows that real Madrid was not that stronger than Leganes because everything about the statistics are just a little difference from Leganes, look at the possession 59% and 41% it does not show much strong impact from one side to another, with how famous and realistic real Madrid is, they should have 70% while Leganes will have 30%. the total shots are also poor from real Madrid side because with their best strikers and having only 20 shots is actually small for me and Leganes that has lesser strikers could even make it to 16 shots, I only admire how accurate they are with the shots they had even if it did not resulted to many goals as expected.
The Real Madrid team hdad son young players such as Jacobo Ramón, Endrick and Arda Güler who are not consistent first-team players. I see the match as a means by which coach Carlo Ancelotti give the young players the platform to play and develop. Looking at the game statistics it's clear that Real Madrid didn't perform badly. They had more shots on target proving that they would have scored more goals. I think Real would have done better if top players had played the game. But the most important thing is that they won the game and qualified for the semifinals. And giving these young players the chance to play gives them the notion that they have a future in the club.