For the record, I have looked at the slo-mo replay several times, and the UR call was bad. That said, I don't think there was any deliberate conspiracy against Yuna. It's more likely that the tech specialist was affected, unconsciously, by the fact that the event was taking place in Japan and Yuna was the biggest rival of the local Japanese skaters. It's not a malicious thing, it's just how humans behave in international competitions. Go back and look at the UR calls over the years and I'd bet my life savings that there have been more questionable UR calls against the rivals of (and for the benefit of) the local country's skaters. Just human nature, folks.