Thank you for the feedback, and I'd agree with the points you made.
I felt a little mixed immediately after finishing it as well, and you may have some similar criticisms with Shadow of the Colossus. The horse doesn't always do what you want it to, the colossus platforming can be wonky and frustrating at times, the story is ambiguous and hard to nail down, etc... But these games do sit with you, and you may start to look at what you took away from the experience as a whole, while those small moment to moment frustrations fall to the wayside. People who praise these games don't call them perfect, they are indeed flawed. It's just when the credits start to roll, many can't help but feel overwhelmed by what they just experienced.
This is all subjective though, and it's why it was a scary game to review because it's easily divisive between certain gamers. I hope I was able to clarify that in the writing, and some day I'll try to expand or explain the "Love it or Hate it" rating at the bottom in more detail.