Maybe, but they certainly used it for marketing too. At the time they contacted a bunch of publications and gave them access but told them they could only share snippets of the output [1]. The only reason to set restrictions like that is marketing.

[1]: https://youtu.be/TfVYxnhuEdU?t=102

Transcript of the timestamped part:

> Now, OpenAI's terms of service don't let me give you the full list. I have to curate them, and show you a sample. Those are the terms and conditions I agreed to.