Yeah, although someone must have signed off his story before he started writing that script, so they probably could / should have known much earlier how much of a trainwreck it was going to be. And they still could have fixed at least some of theIn the end the changes were relatively minor.
The overall plot structure and story beats were mostly unchanged.
Seems pretty clear that Logan's script was so bad that it was unfixable, given the production timeframe.
Blofeld