He knows of the broadcast, but just that Anakin has a rant. He really hasn't been given many details. Feel free to guess when he first heard about it too. The Jedi's brows raising slightly at the mention of another princess.

"You have spoken to Leia?"

A beat as he connects the dots and clears his throat. The Calm Chamomile tea suddenly looking very interesting as he picks up a bag.

"I see. I hope you didn't find the conversation too upsetting."

Of course, it could have been upsetting in a number of ways. Allura could have been shaken by the revelation of an apparently dangerous man on the loose. Or her opinion might be more like his in that the announcement was inappropriate. It's hard to say seeing as he really doesn't know her. Either way, he wouldn't wish any sort of negative impact on her.