If they really have missed the rsvp date as is reported that's probably their tactic - to wield what little power they have left over the RF and cause maximum discomfort.
As they are quiet, does it not occur to you that possibly, quite possibly, they are in communication with the Palace, or with Charles, or with courtiers or with anyone. And have replied. Or discussed it, about what is best to do, and this could just be made up headlines because they aren't talking or responding to the british press. Clickbait to wind people like you up.
So... those that believe this, then have to start a thread to oooh and ahhh, and aren't they awful they have missed a RSVP deadline. When in fact it's probably all a load of bollocks. We just don't know! All that's happened is... they haven't given a statement as to whether they're coming, they've probably replied anyway! And if they put out a statement that would be wrong too. How dare they, we are not interested, I knew they would come, they wouldn't miss it. etc etc
If they are not telling the press whether they are coming or not, I don't bloody blame them! Look at the speculation when they aren't saying! As a PP said, it would all be ooooh they aren't coming! They daren't show their faces! Or
They are coming! I bet they want to be on the balcony, will they bring the children, will she grin, what will she wear, ooooh bet she wants to wear a coronet, where will they sit blah blah blah...
If I were them, I would do exactly the same. Good on them.
I don't know why everyone is so vexed about this and going on and on about spinning it to their advantage, the balcony, netflix etc. It's not about them, anyone would think it's H&M getting crowned!