This is a very good and much overlooked point. Engines don't look for tricks and traps that "might" work, they assume good play from the opponent. It's literally MiniMax (minimise the maximum the opponent can achieve), the foundational algorithm of chess AI. Consequently playing out superior positions against engines isn't as interesting as you might hope, it often feels they just give up. Grandmasters (and masters) on the other hand are absolutely awesome at tricking you out of your rightful reward on those odd occasions when you get a decent advantage against them (source: bitter experience:).