I don't have any understanding as to how a map can cause warpiness.
That said, there seems to have been a lot of warpiness that coincides with the introduction of this map.
Of course that doesn't mean that map is the cause --- could be some other event that coincides with the introduction of the map, e.g., internet virus, etc.
As far as the map goes, I love it. And if there's a little heartburn with the introduction of a new map, so be it. It will be nice to have another map in the rotation.
Obviously, if this is a map related problem, it's something worth fixing.