I didn't interpret that guy's comment about Rachael as an insult to Rachael. I think he was trying to say that Mirai performed more poorly than Rachael who had more limited training resources (time, etc.) than she did. Well that's my personal interpretation. Who knows what he meant. If he did mean it that way, I would side with the guy more than I would with Mirai.
1)Twitter is evil.
2) Mirai and Frank are a bad combination. Mirai needs a coaching situation that is lighter, not more stressful, even if she fails to return to her former self. I do not think she responds well to Tiger Coach. I would suggest Toronto. (I would suggest Peter and Karen if Caroline were not already with them).
3) Mirai has lost the "joy" she used to skate with, and she needs to find someone who will restore this "joy", or, she should quit and perhaps go to college etc.. While elements are obviously important, judges are human, and skaters who appear as if they are happy to be performing are generally rewarded. I do not want to watch a skater who looks stressed, nervous and unhappy. Even though Rachel is a shadow of her former self, I enjoyed her performance at Nationals, because she seemed HAPPY on the ice. (And approps of nothing, Rachel's dress was the most beautiful skating dress I've ever seen....)