peugeot just about played that within the rules, he wasn't blocking down the straights or taking a defensive line and he's allowed to take his own line through the bends as it's the faster car's duty to move off line to make the pass when lapping, davidson got a load of stick last year for trying to force slower cars off their line when passing them so he'll just say he was doing what he was told by the officials.
very close to the edge of interpretation but audi did the same a few years ago and it's always happened in endurance racing when there are 2 teams this closely matched.