Would have been better if Grace died earlier (Spoilers)
I felt like the movie would’ve been better served by killing off Grace early on.
1). It would have further drilled the dangerousness of the villain had he killed Grace early in the movie. It would have also been a good, unpredictable swerve.
2). Sarah, Dani, and Arnold against that one Terminator would’ve provided more drama, more David vs Goliath feel. They could write it in that Arnold’s power source could kill him.
3). Sarah, Dani, and Arnold alone would’ve provided more time for Arnold, the real star. It also would have given more chance to flesh out the Sarah, T-800, John story, which is real plot of the franchise. Nobody cares about Dani, Grace, and Legion.