Yep, it's always funny when she posts that straight-faced.
Seemingly unrelatedly(!), I did notice a remarkable uptick in mentions of Shiseido products in her favourites/empties/recommendations over the past few months, but that's got absolutely nothing to do with the multiple freebie It's All About The Science! trips she attended courtesy of them (Barcelona and Lisbon iirc).
I just think those shoes look like they act as sieves, except the dust and dirt and all that other stuff is getting sieved directly under your feet, trapped by the mesh and the consequential moisture trapping of said material, and forming into some hideous grimy gum. Like, what's the point? Getting all the negatives of walking around barefoot? And for £££££? Plus your feet must look like you slept on a grill with the pattern thst must be left on your feet when you take them off. Just, idk. It's a nope from me. For real, you'd probably get the same experience, plus better foot protection, by wearing some slipper socks! And save some cash too.