I dunno why you’re bringing back SPAV into this, the discussion has had very little to do with it. There are local races that use STV, which is a bigger change to the voting and representation system than SPAV is.
You should just skip down to the part that explains that yes, Palin was a spoiler. You don’t seem to be particularly interested in actually having a discussion, I’m not here to score wins or attack one system or another. I’m here to provide and receive a better understanding of how voting and representation systems work. You don’t seem to be particularly interested in that.