For instance, the article says "Microsoft positions its Copilot tool as a way to make users more creative and productive by capturing all the human labor latent in the data used to train its AI models and reselling it.". The Copilot data could make it a lot easier to steal sensitive business procedures and intellectual property - the data would allow any third parties to fully inspect the company procedures and sensitive data in a scale that we've never seen. It would be next to impossible to manage, categorize and protect this data. It's an intellectual property nightmare.
A good version of the technology, which we don't have yet, would allow competitors to create a copy of every employee (in the business sense) and perhaps much more efficiently compete with that company.