If Magnus was playing to detect cheating and not just to win, his play would reflect that. He did play some very obscure lines just to see if it would trigger Hans to “think” but Hans seemed to play the optimal moves quite easily every time. Analyzing the game myself, it appears Magnus was dragging out the game on purpose by picking highly dynamic lines of continuation that should’ve required long and heavy thinks from Hans.

No, this is cope.

If the evidence shows that Magnus played badly, we do not have to jump to the conclusion that actually he was playing badly on purpose, for the intent of trying to detect a cheater. He himself wasn't even stupid enough to claim this.

No, instead, I am going to trust other grandmasters opinions that he was merely playing badly.

Later in Hikaru’s stream he analyzed some of his own personal best games and one of them only got a 43% engine match score. So whatever the tool does, it does not conform exactly to ideas of whether a super GM played good or bad, at least not for any single game.

(Sorry for the dupe reply, too late to edit my other comment)