That's actually a really good point. Nomura can be many things, but deep down he's an artist and he certainly has an eye for beauty in both aesthetics and in people. While he says he identifies more towards his antagonists, the Japanese voice actors for Sora, Riku, & Kairi have said he's a lot more like Sora deep down and I think that may be an indication of that sense of beauty he has. I'll agree with you on that point.
What I was getting at though is his implementation of story ideas. There's been some missed potential and rushed beats in KH3, and he certainly seems to include things on a whim. The latter can be and has been a great thing for the franchise, but it can also be a weakness if he isn't careful. He can get a little too carried away with his ideas that it can blindside him to other things he's trying to accomplish, and I think KH3 suffers just a little because he was a bit carried away with his ideas for the next saga which he's certainly excited about.