If someone is needlessly dogmatic when dealing with frameworks like Scrum, it indicates in my opinion that they are still stuck in a Shu mindset and have trouble moving on to the Ha and Ri stages, where instead of blindly following a rigid set of rules, they would learn to apply the rules according to the given situation or even to transcend them and to go beyond a lazy copy&paste implementation of the Scrum Guide.
AgileEvangelist 