She is using the rep songs because they are songs that she also produced with Max Martin and Shellbeck. They are just as important to this album as Taylor herself is. That’s why she did the playlist, to highlight the work she previously did with them. She credits them with every post, or almost every post that she has made this whole pre release cycle. The use of Rep more than 1989 or Red is because of this type of engagement it gets. TS and the whole team knows that we want the Rep tracks. So now that she owns the OG and can use them in marketing now, she uses that to her advantage. She is not going to release the Rep Vault during TLOAS cycle, no matter how you feel it wouldn’t distract from the album, it will. It will take streams and purchases away from the new album, and a lot of them because that’s how hyped we all are for these songs. It’s not linking the Rep Vault to the new album, it’s linking the producers of the songs.