The person (probably in marketing) that made the false claim is at fault, and any manager involved who did not stop the lie is at fault.

The software developers who are working on Devin's code likely had no control of or idea about how the video was going to be marketed.

There have been many times that I've been part of a team that built a product we were proud of, and had some business or sales person at our company, over our objections, make claims about it to a customer (or potential customer) that the sales person had been told were not true.

That's a lie, pure and simple, and no statements made elsewhere can make that lie any less a lie.