They might have gotten nervous after Day One and then felt committed even after Day Two went so well? It is interesting. I wish they'd made some swaps but it's so easy to second-guess after the fact.
It just didn't look right from the very beginning to leave off an experienced pair that could do as well as M/G in the SP, and make M/G skate both Programs. Other countries don't swap because they don't have so much talent. In the women's it was a similar situation. Leaving off the reigning world champion and making the potential OGM winner skate both programs didn't make sense. The fed knew how good their skaters are.