Is anyone honestly expecting or asking for a perfect adaptation though?
No, and I wish I knew what to call the logical fallacy wherein somehow the argument keeps getting reduced to "BG fans only want a 100% copy of BG" ... as if we aren't also looking for updates, innovations, and improvements to the game we love - which INCLUDES the RTwP combat.
Pillars of Eternity had numerous flaws (linear progression and a stunted ending, most notably. the story is actually incredibly rich if you take the time to dive into the implications of what the Leaden Key really means, etc. I bought their books to use it as a campaign setting for PnP), but it at least improved upon the technical and visual components in a way that tugged on my heart strings rather than cut them in twain. I find P:K too cartoony and bulky for my tastes, which makes the game seem to move very slowly, but they also understand the value of improving upon RTwP and modernizing it.