I'll comment from the architect side. Having made a substantial puzzle game about movement through a very escher-esque space. Sometimes subversive "Nakatomi" solutions are intentional. Sometimes they are accidental but I know about them either by discovering them for myself, or seeing them get discovered during a playtest. Usually I leave it in. If you managed to play by my rules and win in a way I didn't intend, you deserve the victory.

I'll share an anecdote about one of my favorites. So the objective in my puzzle is to collect all the gold orbs spread around the space. Once I saw a player get a gold orb in a way that was suicidal. Under any other circumstances they would have died immediately afterwards and revert to the last check point. But because they saved it for last, they beat the level in mid air just after touching the orb but before touching the lava.