Exactly. I flew the Phenom 100 out west predominantly 91 and we weren’t (should say I wasn’t cause it was single pilot) required to show single engine capability for close in obstacles or terrain, but I tried making the argument that terrain doesn’t care. Owner would always get pissed when I said we were either no go, need a different airport or fuel stop, wait for cooler temps, or take less weight. He just bought the wrong airplane for what he wanted to do with it.
Still ran into other pilots who would use the old “see and avoid” line when discussing single engine performance. They would depart and my owner would see and get even angrier.