Adele's team definitely knew the song would smash with or without a music video in the UK, where it was released a long time ago. So they waited to release one until they sent it off for the United States, so they didn't spoil the hype for SYL in the US. Really smart of them, actually.
She needs a REAL video for this. I don't want to see some live performance disguised as a video. No. Not tolerated. I hate those types of videos. And Ima need this to go 2x Platinum and top 15 at least on Billboard. That's not asking too much.