GL tinkered with TESB between the 70 mm interpositives and the 35 mm interpositives. Likely they needed the 70 mm before he was truly done with the film and he had some additional time to fine tune (like virtually all movies go through before release). There is no evidence he touched either version after it was in release. And what edits to TPM are you speaking of? I’m aware of some edits to ATOC between the 35 mm distribution and the digital distribution (the digital one is basicly the DVD).
TPM used to feature a shot of Maul tumbling down the reactor shaft in one piece. It was quickly swapped out with a shot of two pieces to indicate he was dead.
I didn’t even remember the edits to AOTC but as you said, that was not a change midstream but changes that corresponded to the format of release.
I’m just saying it wouldn’t have been out of character if something like the grappling hook scene was inserted for opening day and then taken out, that’s all I’m saying. The man has a history. But maybe Star Wars escaped last-minute changes except for the various audio mixes.