I think that remark was prefixed by, "In my day....". It was a different world for the royals back then.
Prince Ranier of Monaco married an actress who took to her royal role like a duck to water.
Anyway, what are we doing earwigging on private conversations?
Prince Philip and the Queen looked delighted at Harry's wedding and also when they met baby Archie. I take no notice of bits of tittle tattle like this.