Gilles and Poirier contemplated retirement after the last Olympics and probably should have retired.
Similar to Guignard and Fabbri, their age is showing, and their skating looks haggard in places. They're no longer as good as they used to be. I'm sure it's disappointing for them to fall behind younger teams, but that's where their skating is at this point (IMO they should be even lower and are not even Canadian number ones at this point). Perhaps teams will learn to move on with grace instead of having to be shovelled off the ice.
People say they want movement... but then when it happens they complain. In reality, they want to win or want their favourites to win -- and don't particularly care how it happens. They don't really care about fairness or what's happening on the ice as long as the "right" team is winning. They'll justify any result they like and complain about any result they don't. For years, people have complained about a team with a fall winning ice dance... but today a team with a disruptive fall was robbed and should have won

. Sometimes I shake my head.
The ISU judges, including Shawn Rettstatt, are fairer than most fans, IMO. Still, I think ice dance is beyond all hope and should be kicked out of the Olympics. It's too inherently political. The rules are vague and open to interpretation. The best you can get is agreement on "segments" of teams (OK, good, great), and even then you'll have a lot of disagreement. The more the ISU tries to fix it, the sillier it gets. Just kill it at this point. Or make it a recreational sport.