I aggree on that, most of the times bosses move, you have to get away, this will delay a GDC or two etc etc. We aren't TAS machines.
A bit of random is fun, having reprisal and low blow proc on parries (I don't remember the rate but if I recall it was fairly high if not 100% ?) was fun oGCD to weave in. The ressource management felt more organic, dynamic than what we have now.
Right now it feels very... cold ? As you said it's spreadsheet where we know exactly, to the digit, how our ressources will be generated and spent. To be honest I kind of prefered MP not being the same cap for everyone and being an actual stat.