of course, at that point they're out an Overgoddess since it's not like you can free her (though I guess you could at that point)
Um. Isn't that literally all they're here for? And don't they need her to stop some major incursion into Creation?!? Geez, this plot has more holes than Swiss Cheese.
Hey, I'm telling you how you could save YOUR asses and keep the party together, since that's what was asked
You could always do it yourselves, you're going to have to anyway.
To the first: You don't get it. This is literally their mission, and they're portrayed as pretty damn single-minded in it. What the hell will we be able to offer them?
To the second: These two angels wiped the floor with us. They can't handle this Threat. Unless there's some total BS plot device that lets us blow it up, we're doomed against the Threat, which presumably has no reason not to engage us bugs in combat if we pose a potential threat. And which might not even be in this galaxy, let alone anywhere we can reach, for all we know.