Back in my days in a political party, I really tried to implement a RCV for our internal constiuency election. My main point was highly contested party nomination elections are often take hours and hours--and the winner is usually the one who can keep his/her supporters at the meeting. Another benefit was the side deals that happen between rounds of voting.
While I was allowed my soapbox and I pushed it as hard as I could, this idea didn't go very far.
I'm out of politics now, but I think all Canadian parties use RCV in their internal elections. I think the parties would prefer this method, but it's a political nightmare to even suggest it.
I think most voters don't care and could figure this out. It's the vocal minority that show up at these town hall meetings.