I would also add that it’s very likely all of that color channel misalignment could very well have happened on the separation masters, and as such, would be very unlikely to be on that ORIGINAL negative (as in the film that went through the camera) but would still be on every print because it would be on the dupe negative, so if the goal is to restore the original negative, then fixing EVERY instance of channel misalignment is the proper move.
Even compositing elements together wouldn’t cause color channel misalignment, so that’s either a result of improper combining of the color separation masters for the dupe negative, improper combining of the color stock for the IB Tech process, or in some cases, both. But in no instance should there be color channel misalignment on the original negative.