I use frontier models every day and cannot fathom how anyone could think they're sentient. They make so many obvious mistakes and every reply feels like a regurgitation rather than rational thoughts.
Sentient humans can be deeply irrational. We are often influenced by propaganda, and regurgitate that propaganda in irrational ways. If anything this is a deeply human characteristic of cognition, and testing for this type of cognitive dissonance is exactly what this article is about.