Congratulations! You've achieved the impossible: making a game so beautiful that players are mad it doesn't suck more. This reviewer is basically saying "How dare you make something gorgeous without forcing me to solve obscure puzzles where I need to combine a rubber chicken with a pulley in the middle?"
The "finished within Steam's refund window" comment is the chef's kiss of backhanded compliments. Nothing says "your art is wasted" like someone timing their gameplay to maximize their financial efficiency.
Next time, maybe add some deliberately frustrating gameplay elements? Perhaps force players to type commands like it's 1985, or add some game-breaking bugs for "authenticity." That'll teach you to make something beautiful but accessible!