You should keep in mind that pulling out the anti-semitism card all the time weakens it's power. It seem like some jews find hidden meaning where it simply does not exit. In this particular cartoon the criticism was directed towards mindlessly accepting GENERAL religious non-humane practice.
Ex-FM Lieberman: Firebomb attack in Jerusalem a reminder that norm is Arab terror against Jews (Haar
from the article: Jewish groups slam Norwegian paper over gory circumcision cartoon