Earlier quoted context omitted.
Did they ever issue a release saying, that they were baseless claims by an ex employee? It's a bad look to say absolutely nothing.
Ignoring it is the correct move. They aren't serious allegations, otherwise they would have been made in a serious manner. The guy claims that he was wrongfully terminated for antisemitism in Germany of all places. Do you really think the German government wouldn't take that seriously and investigate? But all he decided to do was blow hot air on his blog, because his allegations are nothing more than a cynical lie me…
A lot of people want to wash their hands of their old employers and move on, even when they have actionable claims.