Mad innit?
I'd argue, as a BBC radio employee presenting current affair shows he has an absolute duty to be fully in loop about things like Royal births. It's just complete arrogance. And then to actually tweet about the thing! Why even do it if he knew nothing about it. He's an antagonist for...
It has to be naivety- if he did know (about Markle) he would also know he'd be sacked.
Still, he really can be a gobshite these days, especially on Twitter.