In any case, that lap records were beaten this year tells an altogether different story: the engines used don't matter that much for the lap times after a point. After all, they were running almost the same engines last year, a little development notwithstanding, and were much slower: what has changed, and what dominates the gains in lap times, is aerodynamics – which are severely restricted by the rules. That was also the case a dozen years ago when we had the similarly powerful, larger but lighter N/A V10 engines (no hybrid part to lug around back then), accompanied with a narrower track and grooved tyres to reduce the cornering speeds. Thus the comparison is moot: everything around the engine dominates the equation anyway, but that is hardly news.