U really think people woukd think it's a decent thing she did
I think a lot of people would think it was decent, but my point is, THEY clearly didn't think it was the decent thing to do, because if they had, they wouldn't have cared what others said about passing on well wishes.
The other possible reason for not adding to their statement, could be they didn't want any backlash from their own fans, the ones who believe in all the conspiracies and don't care that Catherine has been very ill.
Edited to add > no one knows why they didn't wish her well, but it does come across as very callous and pointed.