I think we are reaching a conclusion. The original question was answered, but the inevitable thread creep got round to the 'Airport 77' scenario of could Karen Black have landed the thing had the guy not got in the cockpit via the helicopter?
I think we're agreed that if the guy (or gal) in the seat pushed buttons on command from someone they have raised on the radio, then yes they could probably do it. But if someone with a bit of flying experience wanted to have a go at being the hero, the outcome would probably be different.
I'll take you up on your bet Open Cirrus! Mind you, I do have over a thousand taildragger hours (mostly De Havilland) and over 600 gliding hours. And I've flown an Open Cirrus. Lovely Machine!