Because they did. No matter what tools they used, they are accountable for the resulting product. People who use CNC machines to create physical objects don't reject the idea that they made the object, even though the machine did the work.
Don't fall into the trap of anthropomorphizing Claude, or any other LLM. It is a tool. The person using it is still the creator.
Don't fall into the trap of anthropomorphizing Claude, or any other LLM. It is a tool. The person using it is still the creator.