Found a complete replay of the event here:
The medal ceremony starts a bit after 2 hours in, so watch and judge for yourself. While I am seeing that Saki and Kaori are closer (not surprising), I am not seeing the "cold", unsmiling treatment they supposedly gave Mone. For a lot of the moments they are together as a duo, it's because Mone was skating ahead of them and either she didn't notice that they were going much slower than her (how would she?) or they didn't notice because they were too caught up in each other. I am also not seeing how it took Mone "a long time" to find her smile for the photos.
The moment with the flags was obviously awkward, but more so because of the logistics. How was Mone supposed to wave with two arms around the skaters next to her?