I actually do think that's in fact what stereo mixes are for, and the point of having a new stereo mix is to reveal more detail by cleaning things up and using the latest technology. The point of a surround mix is of course to reveal all that detail but also to create an immersive sound stage, and that's very inconsistent in Giles' work. I'm the first to agree the feel and character of the original recording must be retained - and I was a fan of what they did to the sound of the White Album for this reason exactly, they nailed that one. And as stated before, Elton John's remixes are the extreme of what can be done in Atmos and still retain the sound and feel of the original material. So we know it's possible.
My real issue is actually that it feels like Giles doesn't know the source material well enough because in many cases the balance of instruments and sounds is different than the original mix - opposite to what he claims he's trying to do. I'm assuming he did Live And Let Die as well, because it suffers from the same issue of things that were front and centre in the original mix just relegated to the background and barely audible now.
In any case, I think there's also clearly a progression in Giles' work over these releases, each album is a little better than the one before it. And that's part of the problem. I have no issue with him teaching himself how to mix in surround sound with INXS, but not with the Beatles please. "Hate" is definitely a strong word though, I'm just not a fan of his, and I think The Beatles deserved better.