Basically how I see it is,
"Dark Horse" has the #1 on lock for three weeks already without promo or a video. Releasing a lyric video or the mv would give it a huge surge but no longevity. She should wait 2 weeks to release a super unique lyric video, then release the music video in a month, combined with the Grammy performance, that's 5+ weeks at #1. It's such a rare position for this song because it's nowhere near its peak and she's totally letting the song do everything by itself, no need for promo or videos. They just need to play their cards rights and this can be an even bigger hit than "Roar" was, one of the biggest hits of her career.
we have to ask her on Twitter
