It’s Disney’s fault for having such a tight deadline. When Carrie passed, they should have pushed it back a year. No one external forced the release date.
Abrams was given a daunting task. I still don’t like what he pulled off, but fault depends on how you frame it.
None of the bad decisions he made were time-based though. He would have had an extra 6-10 months to try finessing his mountain of bad ideas, but they still would have been fundamentally bad. If anything, looking at how that movie was made, it just would have been packed full of even more - and newer - bad ideas than what we got on his deadline.