The twist with Lycanroc’s eyes was really cool, throughout the battle they would occasionally turn red which would always cause Ash to worry and tell Lugarugan to calm down, but it turns out it was never losing control to begin with (in this episode that is), the red eyes are now just a mode that it can activate to become stronger. Nanu realized this and hinted it to Ash, ”Rather than becoming angry, isn’t Lycanroc simply getting stronger?”, but Ash wasn’t convinced immediately and hesitated to use the red eyes, so Nanu started provoking him, saying Lycanroc would be better off without a soft trainer like him which caused him to get angry and lose focus in the battle, until Lycanroc itself was able to to show Ash he was in control despite having red eyes.
So yeah, we were lead to believe that Lycanroc still had issues because Ash also thought that and we shared his point of view, but he was wrong.
The battle wasn't anything special as far as animation or the actual KO's go, but the character writing carried the match for me, and I think Pokemon could use more of that.