If I was expecting a call, then no...I would not be pissed. If they explicitly said I would be receiving a call from an AI customer support person, then no. If I was expecting a human and got an AI, then yes. I think it is about user expectations in this situation.
But, I am not sure this is what the OP was hinting at.
Also, if you are going to use an AI to help me with an app, why not just deliver the help...through the app? Why the extra step?