> The robot does this by cleverly exploiting a flaw in the telemarketer playbook: staying on the line if the person is agreeable. So the system leans on “yeah,” “sure,” “okay” and “yes.”

While this might be a clever single experiment, this is a really bad idea to run a bot like this running on your phone line. Oral contracts over the phone exist so you should avoid any kind of agreement when a telemarketer calls you. (IANAL, I'm not a lawyer, etc...)