When I'm at this page, I noticed that my video wasn't uploading in the background. Nifty little trick that most systems do is start optimistically updating stuff, so here if you guys started the upload process knowing that most users would finish it, it would make the final upload page shorter and a better experience :)
I've used similar tricks to make loading appear faster even though it might not be in places

Yeah we got this suggestion from multiple users because this was the upload flow before we switched the whole backend. It is already in my dev instance and will get pushed out soon :)
Awesome!
The update is live and uploads start at the descrition step now :) Also the multiple upload endpoints are live now!