Sluggo, you'll find that most of those differences do not apply to the 70mm version at all. While the 8mm versions may share some visual effects shots in common with it, very little of the alternate dialogue heard there or in the Story of ESB was actually used for the real thing. Also, a lot of the things on that list are observations about the SE mixes, and almost none of them apply either.

I completely agree with msycamore's assessment of the dialogue levels in the originals vs. the remix. Virtually every line is at the exact same level in the SE, even when it doesn't suit the position of the characters onscreen; while the older versions put a lot of effort into creating a realistic sound field with varying levels as appropriate for each shot. On top of that, you have utterly stupid things like Chewie letting a huge roar just as he is about the strangle Lando, completely drowning out part of Leia's dialogue in the SE, while neither original mix sounded this way at all. It's the kind of sloppy, misguided foolishness that comes from re-doing something that was already pretty much perfect to begin with, long after the reasons for why it was done a certain way the first time have been forgotten.