Alexander's asking about Iyizarid's state was not as much as wanting to warn Sybarsis of an impending attack but more of wanting to find out how he could make that happen.
A Sybarsis- Iyizarid war would not be bad for him, as it would occupy some of the Kaiser family's resources which would help his ally out.
So now the question was how to do it.
The ducal families of Sybarsis did not sit and stand at Iyizarid's actions and even if there was a war, not all the resources of the massive country that was Sybarsis would be diverted to fend off that threat.
So trying to change the course of the fate of entire countries was not something Alexander could easily do, especially given his relative size.
That would be mad.
But it was only something like a pet project for now, as Alexander then forced his focus back to the two people presently sitting in front of him.