Yes, but as the article says, OpenAI promoted it as if it were made with Sora. You can still find the relevant post on OpenAI's website:
https://openai.com/index/sora-first-impressions
At worst a lie of omission/misleading language, though. Someone eager to see what Sora is capable of will naturally assume that the whole thing was generated by Sora, but someone already skeptical or familiar with the capabilities of modern AI will look at it and go 'ah, this was post-processed'.
