Oh, both teams played 'badly'. As you would expect with 2 fairly evenly matched opponents. But those mistakes are not actually playing badly, but playing against a well prepared and mentally resilient opponent.
In 2017. EDG in one game had 9-0 in kills and 10k gold advantage and in other game they had 6-0 in kills with 6k gold advantage. In both games obviously they got baron and had total map control and still lost the game.
I do not really recall people or analysts saying that EDG played better League of Legends or making arguments that they'd win with reversed draft. General narrative was 'EDG played so well for so long, but you give SKT and inch and they will take miles.'
Narrative back then was - its because SKT is so good that they can turn a single enemy mistake from 100% loss into a win.
Well, maybe I would've had a different opinion to the analysts if back then, I had the knowledge that I have now.
It's all contextual and no series are the same. I did believe that TSM played better league than TL did in the spring finals and got into the same arguments with people that I'm getting into now. Sometimes, that's just what I think.