I’m familiar with this of course, but it’s conditioned on a chat program that actually tries to appear human, and the credulous reactions to ELIZA were mostly lay people who otherwise hadn’t used computers before. Likewise, some people, famously including some software engineers, believe that certain AI chatbots are sentient, which also doesn’t falsify the linked study. (This argument holds regardless of whether you consider AI chatbots to be sentient or not.)

But what does that actually show?

Humans have been communicating with other humans via text for ages. Fooling a human that the person on the other side of text communication is also a human isn't too hard, especially when they are not looking for signs of deception.

Even if they are aware it is a computer, humans will anthropomorphize literally anything. Animals are obvious, but we'll even extent it to simple objects like cars. We'll talk to them with zero expectation of any response or sign of sentience. It's a suspension of disbelief, really. It's not any different than kids playing Cops And Robbers, people performing a theatre play, or playing a board game with friends.

CASA seems to suggest that humans will view any computer interaction as one between two humans. That's not just interacting with chat bots, that's also something like opening the Configuration Panel. If you ask me, that's a massive stretch!