User blog comment:Kogath/Monster Hunter Generations Discussion/@comment-6050823-20160313011515/@comment-26836109-20160313160327

I think Gammoth was supposed to make the Elite 4 more Diverse, since we already had awesome dynamic fast moving creatures, so they had to mix it up and bring the slow Juggernaut.

In Japan, no one really likes that type of monster in a group I guess.