To borrow a phrase from Rick and Morty: "Your boos mean nothing, I've seen what makes you cheer."

That is, I've seen plenty of very high ratings on Goodreads/Amazon for things that (in my opinion) range from mediocre to slop.

That tells me there are lots of raters who use some criteria that, while I'm sure it's reasonable to them, doesn't correlate well with anything I'd recognize as "quality".

Glancing at the actual text of the Goodreads reviews, it seems like most of the negative ones are outright saying that they didn't understand the book, and therefore decided that it's meaningless. I'm not saying this because I'm trying to sneer at those reviewers, it's just quite literally what they're saying about the book.

Okay, but I've never seen a book with such poor public reviews. I'm dead serious about this: I've never seen anything comparable. And I spend a lot of time buying and reading science fiction books. The public disdain for this book is quite remarkable, really.

So there are a lot of boos. And even the book's supporters seem to strain to find meaning in it. The most parsimonious explanation is that it's genuinely incoherent.