I’ve always suspected that Charles was having the conversations about slimming down the Royal titles and changing the existing rule to just keep the Prince/ss titles in the direct heir line. (Which I think they should definitely do before Charlotte and Louis have kids).
I also think this. The same people who champion the idea of a slimmed down Royal Family, who agree with Beatrice and Eugenie not getting Civil List funding, who applaud Princess Anne asking for her children not be given titles, are often the same ones up in arms at the mere suggestion Archie wouldn’t be an HRH. As I mentioned in an earlier post, Harry and Meghan supporters dismiss the Dukes of Gloucester and Kent etc. as “hangers-on”, with apparently zero understanding that, as they age and Harry gets further and further away from the throne, that is exactly the position he and his children could be in.
People cared about Archie’s and Lilibet’s births because Harry is high profile and they were the great-grandchildren of a reigning, popular sovereign, who would effectively be “promoted” once Charles succeeded to the throne. But that promotion is by definition a temporary one. In a few years they will be the King’s niece and nephew, and eventually the King’s cousins. How much do people care about the adult cousins of the monarch? Ask people to pick Sarah Chatto out of a line-up and you probably have your answer.