In a sense I would agree. I would trade fully voiced content for more content. Or just do what tropico did and only voice the first sentence or so. It seems awkward but it worked in that game quite well.
How did it wreck the story? I have never done the undead princess before (doing her now that I'm trying the new hard mode). The one's I have done have only been around 5 decisions (maybe 15ish turns of princess story, not 100% sure on that, maybe 20), which was way too short imo.