One of the problems with a 10-month preannouncement is that the competition is ready to trash the actual announcement. Half an hour in, I already see half a dozen barely-concealed posts ranging from downplays to over-demands to non-user criticism.
The competition is ready to trash the announcement because the 10-month delay gave rise to several viable competitors, and that would still be the case if OpenAI never did the preannouncement. If OpenAI released Sora 10 months ago, there wouldn't be as much cynicism.
I don't think you can reduce it to this. Even on the showcase videos on the home page I can see weird artifacts, like the red car in the video of the guy walking through a market. The car is driving on a pedestrian walkway (through pedestrians), and just suddenly disappears from one frame to another.
