Its that telling the world a Waffen-SS soldier was a hero with no understanding of the situation at all is a terrible, stupid idea.
It would have been terrible and stupid, perhaps, but Rota explicitly said he is recognized as a Ukrainian hero and a Canadian hero. There was no mention of him being recognized as a Waffen-SS hero.
If I said you were a Lemmy hero, that doesn't mean you are also being recognized as a "that time you got blackout drunk at the bar and made an ass of yourself" hero. There is no logical connection between them. The world is not one dimensional.