I don't think you understand the importance of that test. That illegal tyre test arguably helped Mercedes in their long run of dominance in the modern turbo era. They had a unique opportunity to obtain knowledge about the 2014 Pirellis that other teams didn't get.
Re the 2021 season. Verstappen would've easily won it, if Bottas hadn't taken him out in Hungary or if Hamilton didn't nt take him out at Silverstone.
Mercedes getting unlucky in the last race was karma for those incidents. And in the balance I firmly believe that Verstappen was the rightful winner of the 2021 season.