Turkeys and Christmas

The Green Party is backing a voting system that would make it more difficult for their sole Westminster MP to retain her seat, which shows either a refreshing lack of self-interest or an ignorance of how AV actually works?

I have to say I don't really get the rationale - that it would show an 'appetite for change'? Surely it's not change per se they're interested in but a change to the voting system they actually believe in, which isn't AV?

I'm interested in the way some proponents of voting reform pooh-pooh any suggestion that voters might be confused by complicated voting procedures yet simultaneously seem to be suggesting that being opposed to AV because you're in favour of PR would confuse the issue by sending mixed-messages or something?