I don't know how Charles or the rest of the family feel, but I can imagine. I know what it's like to be estranged from a son and only GC. I know what it was like for my mum and m.i.l. not be able to see their GCC, and for my mum her only GCC.
Awful, hurtful things have been said about us and our family, thank goodness not to the whole world but it's bad enough, so what H & M have done to his family and her father must be so much worse.
To answer your question in your OP maddyone, no I'm not surprised. I'd be surprised if he ever had any intention of coming.
Harry hasn't meant to have done anything volver, he's being judged on what he has done. He isn't suspected of trashing and betraying his family, he has trashed and betrayed them.