You raise a very good point there. I've had similar experiences with other good low budget indie games with bad graphics and small teams (or solo teams).
Yume Nikki was a tier above them all however in one dimension, considering how unique I found it to be.
It seemed really strange to me to find a game made so long ago, by 1 person, be so intensely engaging for reasons most games don't even began to develop.
Games are usually fun or the story is interesting, but rather than that Yume Nikki captured me mostly because I wanted to figure out what the hell was going on not just with the game but with what the kikiyama had to say and show.
It inspired me intensely for this reason, in that it was this creative and unique in ways I've never seen even with it being made 15 years ago.
If you do still have that .doc I'd like to see it please.