God has no independent partner in creation. But refuting a theological proposition and pronouncing a judgment of shirk or disbelief upon every individual holding a related view are not the same act. Classical arguments may state severe implications of “multiple creators”; understanding an actual person's doctrine requires attention to definitions and stated intent.
Divine power encompasses contingent things, while human choice operates as a real relation within creation. Someone calling a craftsman a “maker” means something different from assigning him independent power to originate existence.
Making this distinction preserves conceptual precision without turning a technical disagreement into an automatic judgment on individuals.