Hey, I just checked some gameplay from the game you mentioned on Youtube.
You are right - games don't have to look great to be fun and a success.
I guess, it's just that I don't really like the graphics style you have going. The graphics from that game 'Baba is You' I somehow find more.. acceptable.
I mean, you can really see that you put effort into your graphics, I just think it doesn't look right for the amount of detail that you are going for. Maybe it's because they are just out of proportion, and the colors are just out of place, or that the layered gradient look is giving me a wrong vibe, I don't know.
But hey, then again this might just be what you were going for. Add to it that I am a perfectionist, and often don't even feel like my own work is 'perfect' enough! Heh, there's always room for improvement.
Anyway I hope I wasn't too blunt with my feedback.