Oh, give it a rest. Kylo had been shot with Chewie's bowcaster, which had been established to be incredibly powerful. He was literally bleeding during the entire fight.
Finn actually held his own for awhile before Rey got involved, and he had barely touched a lightsaber before in his life and had never once been established to have any melee training. Rey, on the other hand, was visibly shown to have combat training with her staff earlier in the film. Before Rey ever crossed a saber with Kylo, he was emotionally compromised, shot, and had already battled another person WHILE injured.
This argument is not just tired, it's necrotic.