User blog comment:Crimson Storm Mich/Future Units Preview v2/@comment-27960787-20170429165913/@comment-27960787-20170429170643

Also, Too bad that Grah and Owen will be a separate unit. But this time, I can excuse the reason why.....Spoiler alert:

Since they're pretty young and these guys are still in time when the Ishgria Expedition squad was set up. At that time, Owen is still 35 years old and Grah is 37 years old. Honestly Grah looks younger than Owen if you ask me but he's actually 2 years older than Owen.