Yeah. Considering the Soviets had just killed millions of Ukrainians in the Holodomar when WWII started, I don't think from the Ukrainian perspective either group invading Ukraine at the time was the 'good side'. Many Ukrainians thought siding with Germany was their best chance to gain an independent country after the war. Unfortunately, we know now that the Nazis were never going to let that happen, and it did lead a lot of Ukrainians to collaborate with the Nazis in committing terrible atrocities. But it was a much more complicated situation than that they fought for the bad side. "Slava Ukraini" reflects their desire then and now for independent self rule, not any moral failings during WWII.