I don't know if it's a pure coincidence or has something to do with them. They did 39' in 2022 so no reason to panic yet (but it wasn't full gas by their standards plus Granon the day before also affected it).
I think it's unrelated. A wish for more varied and novel uphill finishes, and maybe also to do with fan behaviour.
MTFs in the Tour:
2024: Pla d'Adet | Beille | Isola 2000 | Couillole
2023: Cambasque | Puy de Dôme | Grand Colombier | Bettex
2022: Granon | Alpe d'Huez | Peyragudes | Hautacam
2021: Tignes | Portet | Luz-Ardiden
2020: Orcières Merlette | Aigoual | Peyrol | Grand Colombier | Loze | Planche des Belles Filles (PdBF)
2019: Super PdBF | Tourmalet | Prat d'Albis | (Tignes) | Val Thorans
2018: La Rosière | Alpe d'Huez | Portet
2017: PdBF | Peyragudes | Izoard
2016: Arcalis | (Ventoux) | Finhaut-Emosson | Bettex
2015: Pierre Saint-Martin | Beille | Pra Loup | La Toussuire | Alpe d'Huez
Only the legendary (Super) Planche des Belles Filles has been more popular!