Granted, the LOTR of Lothlorien helped, too (I only saw the Sagrada Familia in 2022). To past generations, "Gothic" means something quite different, as we see it in our current context, with darkened fronts and comparisons to buildings that allow even more glass. But back then it was all light and organic. The SF seems to go in the same direction, but unhindered by medieval masonry and mathematics.
Then again, I also like brutalist churches...