I don't think it would be contrived as such, but it does show why the last games should be played at the same time. Irland could be losing with 10 mins or to go and then arguably they are better off letting Scotland run in more points to knock out South Africa (Ireland would be above SA because of head-to-head so the points difference doesn't matter). I not saying they would do that, but even if that was how it played out questions would be asked.