Plot hole: Gypsy Danger grabs the wounded Kaiju and falls into the interdimensional rift, which opens in response to the presence of Kaiju DNA. That's how Gypsy Danger entered the Kaiju dimension, but Mako and Raleigh somehow escape the Kaiju dimension in their life pods without using Kaiju DNA. Obviously, the rift allows physical objects and energy to pass unobstructed from the Kaiju dimension into our dimension, but not the other way 'round. If this is the case, then Gypsy Danger's thermonuclear detonation in the Kaiju dimension should have burst through the interdimensional rift, as well, at least for a second or so, at roughly the speed of light. Given that Raleigh and Mako had only a 16 to 20 second head start ahead of the blast, they should have been vaporized.
Charles Austin Miller
29th Oct 2015