The Welsh were previously losing 16-0 at halftime but have since overturned the deficit to lead the game.
Converted tries from North and Tomos Williams, further added to by a penalty by Dan Biggar put Wales 17-16 in front.
Wales legend Shane Williams spoke of the howler that put Wales back into the game.
But Cuget, who looked sure to pick up a loose ball under the posts, let the ball slip out of his hand.
North was able to capitalise an score a try, after having a mediocre first half.
“It is great by George North because he never gave up the ghost, but it’s a tremendous mistake by Yoann Huget,” he said.
“The French winger will want to pick himself up as quickly as possible, but Wales are right back in it.”
Former Ireland captain Paul O’Connell, who earlier noted the weather would affect Wales’ game, also had his say.
“It was a great piece of advantage by Wayne Barnes because it was such a bad kick,” he said.
“You wouldn’t have thought anything would come of it. In fairness to George North, it wasn’t an easy pick-up. That was a great finish.”
Since the turn of the half, France have been a shell of the team they were in the first period.
Williams added that Wales were like a completely different team.
“We all know Wales love to hold the player up in the tackle, and that just goes to show the urgency in the Welsh line speed,” he said.
“They are playing with a skip in their step.
“I can assure that is how they would have been told to start the second half by Warren Gatland.”