Nah, polls are shit. First of all, I trust more the devs with their vision than any poll. Second of all, we've gone through more than a year with content that I don't like and I'm still here. Why? Because I trust that at the end of the tunnel we'll have more of that "librarian" that you mention, more of Jezara and in general more of that kind of content that I like. If we only get the most voted content and it turns to be Alexia x Andras a-fucking-gain (as if they weren't the couple with the most content already), the second patch that something like that happens I'm outta here, and a lot of people would be too.
Having more characters is good because you reach a broader audience, yo get room to explore other concepts and other kind of relationships, and you make the world feel more alive. With limitations, of course, we don't want 12909 undeveloped characters for the sake of it, but I don't think the castle is too crowded at present. The problem with the delays that we've had are the goblins, in my opinion, but we're already seeing its last scenes (I think/hope)