I know NA can't win in CSGO without a fluke run in Boston Major 2018 but trying to discredit Champions because they couldn't win it is laughable.
The most prestigious trophy to be won in Valorant is the Champions trophy, which is the equivalent of Majors.
Acend Esports Club representing EMEA, are the current holders of the first ever Champions trophy after 2-0 triumph over NV (Optic), Liquid and Gambit.
At the time, the best Bind team in the world, undefeated.
How can NA ever make the case, they are better just because Optic managed to take advantage of inexperienced Zeta Division and Loud on their way to winning Iceland.
TLDR: Champions of the World, you'll never sing that.