You betcha! The long term goal of Islam is to convert America to Sharia law. Thus, all small fires like this one kindled in Oklahoma must be stomped out before, like you say, it becomes a model for all of the states...putting a choke hold on the goals of Islam in America.
It's already happened in Europe. Islam has it's eye on the big prize. USA.
Every state in the union needs to adopt somilar laws.