User blog comment:Kogath/Monster Hunter XX Discussion/@comment-6050823-20170215052137/@comment-7784930-20170215084828

Seeing as they wanted to show off some of the new moves and have the hunters doing their jobs well, throwing in Hellblade or MD Diablos (Both monsters are held in a high place for these games) there was no way they would put them in there to be beat up.

Out of the returning monsters for XX, Barioth was probably the best choice followed by Gravios, but since Barioth is new to 4th gen games, it'll be new for a number of players.