I was watching world champion 2019, and I'm surprised that those pro. players make rookie mistakes too just like all of us! For example, in the tl vs tsm match, the jungler didn't use the blast cone to escape, instead, he used his skill to go through the wall in the jungle, which result in a free gank for the enemy team. Maybe he was under pressure, but still, I was like "wow, so pro. players make that kind rookie mistakes too".