It ended up being less, yeah, but not by that much, maybe 15%. Thing is, there was no "extract methods" possible. It was an old user script creation tool that had been modified over the last 10 years. If it were that easy, I would have just done it myself.
What this shows me is that it truly understands all the things this script was supposed to do and was able to organize it better, while not breaking any functionality.
Fair enough, I think it's positive that it did reduce it down to an extent.