User blog comment:Kogath/Monster Hunter: World Discussion/@comment-31029678-20190208002724/@comment-5158920-20190210184231

Because if you looked up the plot of the movie you would know portals are part of it's plot. It's literally modern day soldiers getting sucked through a portal to the MH world and the the animals from MH coming through the portal into ours to attack us for the sake of attacking everything.