Yeah, I've come to accept that. But my preference for modern surround mixes of original stereo recordings is the "3D version of the stereo mix", as you put it. After having a loving relationship with so many titles from the 60's-80's, a different take on them usually evokes a response from me of "man, he really hosed this up. It doesn't sound right at all."
I'm not a great fan of the "re-interpretation" approach. It's not all bad though. I do find some of the new mixes interesting, even if not faithful to the original. But for a handful of titles, most notably the ELP ones, I'm not very happy with the 5.1 mixes. For those ELP titles, I think they would have been stellar if SW and JJ had been more faithful to the original mixes. But that subject's been discussed plenty already.
Maybe I'm not a qualified QQ'er. I don't really want new mixes, I just want the original mixes with the instruments spread around so I can hear more of what's going on, and a spacious presentation. I'll take what I can get though.