I don't know if anyone else has seen this - there's been a three-part series on French ice dancing in L'Equipe over the past few days and today's (final) instalment is about P/C. It's
here, but it's paywalled so I can't read beyond the first paragraph which describes how stunned everyone was when they won their first GP even over Cappellini/Lanotte in 2014. If anyone has a subscription and feels up to giving a summary, it would be very much appreciated by me and I'm sure everyone else here.
Pull quote from Marie-France that I saw on Twitter, translated into English: "He is a great artist, she is a great performer. Many stars have lined up to make it happen for them. Their story is a fairy tale." And another: "Some couples thought that they'd come to work with us and we'd sprinkle a little fairy dust on them and boom! they'd win Worlds. But you have to have a certain talent, and work for a long time with the same partner..."