Obviously, if you let an issue to drag on, and don't react to it immediatly, it soon become "last year", doesn't it? The FIA being the referee in F1 is supposed to be pro-active and not sweep infringements under the carpet. Yes, we know the FIA can't be bothered to really tackle Ferrari. Also, when at team is found cheating at one race, it is reasonably suspected to have it done before. Remember when Tyrrell was found to have used lead ballast at one race, and was disqualified for the whole year?