Well, that solves my problem of having to choose to between the Toronto IndyCar and Montreal FE events originally scheduled on the same weekend. But oddly (if true), "
the change came at the request of the organisers in the US". If they were the ones who wanted a different date, you'd think they could have gone one week earlier or later to avoid the already well-known problem of the date clash with the Nürburgring WEC race.