Its hard to know how any government erecting a monument to remember the Holocaust - which was launched by the Hitler government with the express purpose of eliminating every Jew in Europe and which resulted in over 6 million Jewish murders - could be stupid or careless enough not to bother mentioning Jews.  

If not a matter of stupidity and/or carelessness perhaps one factor was seeming to be too supportive of Israel and the Jewish people might cost the PM votes in the notoriously Israel-hostile UN when the 2 year term on the Security Council comes up in 2021.

I doubt raging anti-Semites work in the PMO or exist among Liberal MPs (although my Liberal MP is a Muslim who formerly headed a Canadian Muslim organization that fought for Sharia Law in Ontario and that provided financial and other support to the terrorist organizations Hamas and Hezbollah).  This MP is the parliamentary secretary to minister Freeland in foreign affairs.

The Harper government stood tall in supporting Israel!