While we were suffering from our own injuries? Yes, I'm certain we would have been a boon, not a burden. Additionally, there is no guarantee the worm's influence would not have interacted with the portal's mechanisms to produce an even more debilitating effect in affected Outsiders.

[ Much of the kaiju's abilities and LILITH's technology remains unknown to him, so he could not rule out such interactions. Even if he were given the option, he would have remained in Vegas out of caution and advised the other Outsiders do the same. ]

It is a manipulation of Imaginary energy, which would be considered Applied Sciences where I am from. I am retrieving objects from a pocket dimension tethered to my being.