Sam Altman blogged last year about Sora:

The majority of users, looking back on the past 6 months, should feel that their life is better for using Sora that it would have been if they hadn’t. If that’s not the case, we will make significant changes (and if we can’t fix it, we would discontinue offering the service).

Guess what? That was written almost exactly six months ago. They tried it, it was a distraction, too expensive to run, and now the experiment is over. Good call not dragging it out.

I wouldn’t be surprised if the video model returns later, just without the social app.