"I mean, if an enemy gets in melee range of one of my Casters, depending on the layout of the area, I'll either do a Leap/Disengage or I'll do a Shove. That gives my breathing room for casting spells. RTWP doesn't make such tactical decisions as easy of a decision to make."

I don't understand why RTwP doesn't make such tactical decisions as easy of a decision to make ?
I mean, if someone rush on my caster. First of all, I pause (xD) then I have a lot of possibilities.
1) sendig a mates to intercept him
2) using a mates to cast an interceptive spell
3) disengage and run away with my caster
4) shove with my caster
5) keep incanting, crossing fingers to not be interrupted before the end of it.
and there could be more possibilities depending of items, level, spells, etc.

As I already said, I dont get the point of Larian saying turn-based was more strategic.

I heard the question about how to implement it but I think it's a... it's not an unsolvable problem. Other games did it (and I loved them : BG, PoE, PKM, Temple of EE, etc) so it's not a real issue, it's just a question of will.
You said something about the Rogue. I don't see the problem. In RTwP he will move faster than the others. ^^

I completely agree with kingnothing69 !