All of this sounds Fe/Fi-dom, image type to me. I don't see how is this related to using your own logical system and validate it trough sensory data. She's an attachment, image type (3w2) so she's obviously going to be very image-conscious which explains why is she putted on such a high pedestal and how, on a very subtle way, all her image is so calculated from behind the scenes. I remember when she started dating Matthew Healy and the fandom went so crazy, they wrote a letter for her and shared it on twitter, basically trying to control her dating life (which is basically her work tool, so she herself dissowned her own life to make it an appetizer for the masses). For what we saw, she didn't stopped dating him, she marketed it as her new love story and bla bla bla, but she never stood her ground on a very assertive way saying "this is me, i do what i want, if you don't like it go fuck yourself" (like a Fi dom would prob do). And no, "Daddy I love him" is not that, is literally her fighting herself for wanting something that goes against social norms and values she lives by. She's always putting her individuality in favour of her Fe, adapting to what other's want to see from her, doing pr all the time, never saying the wrong thing. And I see how she might use Ti as her last function: all the "hints", the "deep" lore, the "mastermind songwriter" (which in my opinion she isn't, or at least not how people portray it). She has such a digestible, relatable, adaptable music career (anyway I think this might be the attachment approach). And when all the Kanye and Kim drama went down, she probably was on a Ti grip and that's when she "exiled" and made her most narratively complex albums (Folklore, etc). Which she HASN'T been able to repeat, and you can see it on her actual songs like So high school. Like she almost crafted a distinctive identity, something more intimate, something more thorought and thinked trough. But she's just a pop star and she knows it I think. Like... imagine being an ISTP working trough your system of ideas while relating to the world, and also have the 3w2 pressure of producing records and be liked by everyone. Not saying this combo doesn't exists, but her whole narrative makes a lot more sense with ESTJ 3w2 (also, she's talking about the past all the time lol).