Originally Posted by Smashlilman
It wouldn't mater so long as preventing the opening of the portal isn't the main plot point of the movie. Any way if Thor is going to all 9 realms the will be a lot of portal openings.
I understand what your saying, but then again I guess I can't see how not closing down a portal to Ragnarok wouldn't feel like the climax of the movie, much in the same way it did with destroying the Chitari mothership and closing the portal in Avengers. I mean with Malekith battling Thor the scale seems more one on one despite Malekith's minions, and more in the scope of what Thor can handle by himself, but if Surtur was to be a direct threat to earth I just think that would be on a whole other scale of danger, making the closing of that portal the primary focus.
That is how I see it at least.