In the grand scheme, the two are not much different. He's bound for the Nox Fleurets instead, to get some experience of the world in a safer environment.

[Another old family with a surprisingly close association to the Lucis Caelums, given their relative lack of interbreeding.

As for Izunia, he's sincerely considering assassinating Garon and setting Xander up immediately, not that it shows on his face.]