Unless those artists depended on (free) access to the model for monetization purposes. There have been some AI videos popping up in Youtube and other platforms. Creating a video using traditional CGI techniques is many orders of magnitudes more work than writing (even pages of) prompts.

To that, I will add that there is a large market for content outside mainstream media[^1]. I'm sure there are creative folk out there which are not visual artists as their main thing[^2], but can use cheap visual art coming from AI to generate some sort of income...

[^1]: See, for example, https://www.thinkwithgoogle.com/marketing-strategies/data-an...

They aren't free to post videos they generated with sora. It must be reviewed before hand