I think there could be something to this. Whenever a mere mortal, however talented, becomes very famous and very wealthy, their soul is vulnerable. There is an element of the occult in Taylor Swift's performances which has obviously been noted. Those of us who are Christians should be alert and discerning to this. It needs prayer to counteract.
We are told in the Bible to never have anything to do with witchcraft and such unwholesome things.
Often these things are insidiously incorporated as 'fun' or harmless. Yet they are not, spiritual warfare is going on all the time. This woman influences a lot of people and can spread any message she wants. Many almost worship her and so she has power as she is at the height of her success.
There are ONLY two types of people on planet Earth.
1. The saved
2. The unsaved.
That's how God divides the world.
Now we want, and it is true, that some of group 2 will become part of group 1.
But UNTIL then, group 2 works for Satan. People NEED to understand this truth.
So there's nothing wrong with being wealthy or famous and influential. It is ALL about what you are doing with that wealth and influence.
We will know them by their fruit. Has Ms. Swift advocated for the Name of Christ in the past 10 yrs? I think we all know the answer to that question.
For those that don't want to click on the link I put, Taylor Swift is seen cheering wildly for different things the speaker is thankful for, there's 3 or 4 Swift is very happy and excited about.
But when the speaker wants to thank and acknowledge God for her blessings, Swift shakes her head NO!
So yeah, with the kind of massive influence this lady has with especially young girls and women, I'd say it's a tad bit important.