Homogenization and fan engagement.
Everybody sounds the same. Since 2008, so many female singers sound like this.
The indie scene is the same, only thing that changes is the beat, most white women sound the same. As for black women, they do the slow soulful try hard singing with the same subject matter.
Taylor's uprising started before the internet blew up and everyone and their mother became meme generators. Thus, she had time to interact with her fans, put them in videos and the like. She's no longer 20 so she not doing it like she used to, she's in her own way coming for the crown.
Beyonce is going to be the last solo black female act that we support. We require too much from the artist and instantly start to compare them to motown legends.
Swift is compared to her contemporaries.