Those people who don't want RNG back must be those who cry at RNG game like Xcom. (lol). Finite encounter, finite enemy. Think about it a little.
W/o RNG this game will be seen as failure few months from now when people already finished the story and onward for a combat replay.
RNG element is what make game like D:OS feel alive (though i admit i got bored half way with OS EE because my char can miss that CC but still deal enough damage (with that skill) to guarantee the waste - in other word, overpowered so fast that you don't really care about the mild percentage to CC).
OS2 may as well remove the HP bar because w/o armor you are as good as dead (like how glass cannon is a shit talent when every enemy has blink like ability so you can't never escape them).