I don't think you understand what "No warranty" means in a software license. It means Anthropic cannot be held liable for results if the software misbehaves and instead of bombing a terrorist compound it bombs a wedding (I chose this example because the US has a tradition to bomb weddings in Iraq and Afghanistan). But in no form does it mean "yeah, I don't feel like doing what you prompted me".

Hence, Anthropic sabotaged the models on purpose to not respond properly to all prompts.