Agree with you I do.İ agree that William and Catherine are being seen more centre-stage. TQ and PP are a hard act to follow, and perhaps for that reason (excepting Princess Anne/Prince Edward) their children have seemed to disappoint. İ also think that age is an important factor, and perhaps knowing that Charles will possibly not have a long reign when he does ascend, it might be the right decision to let King William be crowned, or at least be primed and ready to serve.
I think that because of the Snarkles the RF have had to reassess. Charles had just got his act together after Diana and had steadied with Camilla increasingly popular when Minge arrived. Noballs has derailed PC in my opinion. He was rather fragile anyway and Camilla his Achilles heel. Noballs's exhuming of his mother has fatally damaged him and Camilla even before the "memoir" and film and sly references to his mother's "murder" at RF hands are published. Without the damage at his son's hands he probably would have made it and had a shortish but peaceful reign, but I doubt it now.
I think he will ascend the Throne as he must do and as is his right, but that health reasons will be found for him to hand over to William sooner rather than later. There's more damage from the Much Loved Family Members to come and William will need to be ready.