Parse that statement more carefully.

> I was told the model did not look up user data.

The naive way to read this is "Nothing you guys did influenced the way our model got to the solution".

The less naive way to read this is "Of course the model isn't looking up your user data. I (the guy trying to blackmail you to remove the Anthropic employee from credit on your paper) looked up your sessions, and tipped our model off on how to solve this problem".