While it does skirt some game mechanics, probably due to it being a movie and it's a strange medium to adapt, it also does some really cool subtle things with the mechanics. For example, in the final major fight all of the characters attack in the same order. They're in initiative!

jp is the only one my brain can easily and consistently understand, though I'm sure I could learn another strat given enough time. Once you learn and practice it it's fairly consistent. I feel like it's less thinking too, no need to worry about rotation, just straight lines.

Now I want tome rings to stop being unique, because BiS for a lot of jobs uses a regular tome ring instead of the raid ring.

or they could just do the sub stats better