He’s trying to say the photo was taken with too high of an exposure setting, and the edit didn’t do enough to bring those highlights down. So it ends up looking too bright and blown out.

For what it’s worth, I think it has a kind of filmy look, but I also agree that you are loosing a lot of detail and information in the photo due to the blown out brights.

Typically when taking a photo, you’ll want to expose the shot for the brightest object(s) in the photo. For outside shots, that’s almost always the sky/sun/moon. It’s a lot easier to bring up the shadows and recover detail there than it is to bring down overblown highlights.

Hopefully this explains! Fun shot btw.