Before the TdF, in an interview Pogacar said he liked the look of stage 18 with the Aubisque-Spandelles-Hautacam consecutive climbs with no valley. He said it suited him well.
This is wildly speculative of course (hey, we're in the clinic, right?), but what if the domestiques got the boost for stage 17 to make the tempo as hard as possible for everyone, giving UAE's rivals tired legs, then the leader aka new Merckx will get his little Planche de Belles Filles-esque whatever super booster tomorrow & go on a raid...
Live & hope, i.e. if we're going to watch a super doped product it might as well be as crazy as possible. Because I was a bit concerned for Pog today, i.e. he didn't look so good behind McNulty at the end there. This is unusual & disappointing from an entertainment perspective.