Before you Queens kick and scream without context as per usual, we don't know for sure if this was Taylor's own doing or the work of her publicist or even record label. Let's not have a fit over something until we have enough information to warrant any reaction.
Taylor always shares funny videos and vines with her music in it so I highyl doubt this is her fault.
Yeah, that's dumb; like other people already said, it's promo for her. I don't like it when labels take down videos just because a song is briefly used.
Nnn let me perch for the people that will defend her team doing this. (They do work for her, right lol?) I highly doubt a 6 second clip leads to her losing sales elsewhere. If anything, it's more promotion for the songs.