I jinxed figure skating. First major controversy in over a decade (also in ice dance but to the benefit of an American team). Looking at the detailed results, its the French team that have an element that was scored very widely. From 0 to 4.
Highest and lowest grading are removed. So one judge shouldn't be able to impact results drastically. All they would be doing is giving scores that shouldn't count in the end.
That being said, I think there needs to be a great degree of penalty for falls, missed elements and poor execution. The French team had a mistake, the Americans didn't. But because the French pair's program was considered 'more difficult' it didn't impact the overall results. And in the men's, there really shouldn't be a scenario that a skater can single a quad and repeat an element and still be able to win gold if they hadn't had further mistakes. Some rebalance needs to happen so we don't just get programs that are filled with the most difficult elements performed poorly (sometimes) winning.
Also in ice dance for the second part of the score too much depends on reputation. There seems to be a hierarchy to those scores. Cizeron looks like he partnered with middling skater and turned her into a Tessa or Gabriella; all the judges are more generous with those scores.