I thought that too at first, but now I don't believe the debates will matter much. People are mostly locked in, Quebec will be forgiving of Carney's French, Quebecers won't switch over to Poilevre or Singh, maybe the Bloc gets a small bump...
And outside of the west, Poilevre is not going to be the majority choice. If he were to be, it would have shown by now. Unfortunately for the Cons, he's a one-trick pony.