Because the article doesnt say it, does not mean what they are saying and doing is not a form of denial. I really dont think you appreciate it.
Besides it being offensive, its a form of revisionist history, which is denial of facts. Denial that their countrymen were complicit with the occupying Germans and even after the war committed atrocities when the survivors came home.
So technically there were no Polish death camps. But the Germans knew where they could get away with building them.