I can tell you exactly why for Revisited:

It’s not 1280x720 or 1920x1080. That is, the letterboxing is cropped off, but Blu-Ray format requires a full 1920x1080 or 1280x720 frame size, so black bars are necessary.

In other words, you can’t burn ESB:R to disc without reencoding.

As for Hal’s edits, even the full 1920x1080 versions don’t play nice with BD format and never have. I gave up trying a long time ago. Something to do with Hal making them on a Mac - there are a couple solutions that have worked for some people, but I’ve never been successful.