This is how it'll go down I reckon.
Filming/photoshoot, copied and distributed, someone spends an hour going through them looking for the good ones and messes about with them on Lightroom and Photoshop to make them too dark, as seems to be the fashion.
While this is going on, there's a little meeting, what music do we have, how long does will it last, have we got a template.
Then they get on Premiere and After Effects and spend easily an hour making a video for twatter and the official site, another 20 cropping and moving shit about for square video formats like Instagram.
Checked by someone higher up, phonecalls, released.
All told I bet it's easily 3 hours on a good day without rendering issues, spelling errors, lost files etc.
Just take a picture on an iPhone and get it on the website.