Interesting on BLACKPINK. Literally every other show they have this year is either their own headline gig or a Coachella headline. Plus they are in Australia only a couple of days before Glasto. Given that they are playing these huge shows, playing 3rd down the Pyramid (and therefore without their full production, which is critical to their show) just a couple of days after Australia feels unlikely - you've got to imagine they wouldn't accept the booking unless it was headlining a stage. And yet the possibilities for Other headline feel so stacked that it's unlikely. It's similar logic which says Fred Again is headlining a stage rather than just playing afternoon Pyramid - the show just needs it.
For what it's worth I feel the same about Stromae. Active for the first time in years, has a #GSH, but his whole *thing* requires big production values, so he might end up being one that gets away too.