I'd prefer the term "Shoa" over "Holocaust", as that this is AFAIK the term preferred by the victim groups. But apart from that I don't see any issue with the title.
Do you care to elaborate? Who was sentenced, what was the reasoning, and what was written in that article?
I consider that overzealous - this article on "it's hard to identify the now-nameless people who were mass-murdered during the Holocaust" is anything except revisionist, yet you would "report this article to the police." What for?
He was absolutely and emphatically not sentenced for "just asking questions," nor for the title of his article. GTranslated media coverage for that case: https://translate.google.com/translate?sl=cs&tl=en&js=y&prev...
The gist of his article was essentially "no holocaust ever took place, there is no evidence of any genocide or gas chambers, Hitler did nothing wrong." He was just asking questions, riiiiight.
South Park has never been more relevant: https://www.hulu.com/watch/252630
It's witch hunting and disbars healthy debate.
I'm not saying He was right, but neither accepting the propaganda of the winners as a dogma and go for witch-hunting for it.