Migliore claims to be a Barthian of sorts, but Barth would be appalled. The irony is that in Dr. Migliore's anxiety to escape any received traditions that might be man-centered and deeply intertwined with our (oppresive) human social orders, he has so gutted his theology that there is nothing transcendant left of it either. He classifies all the classic, ecumenical attributes of God (absoluteness, immutability, omnipotence, etc., see the rant on p.78, for example) as human metaphysical constructs, so in the end there is nothing left of God, at least not as he is revealed in Scripture. Dr. Migliore knows his theology and has taught for over 30 years at (arguably) America's most prestigious mainline Protestant seminary (Princeton). You get the sense that the classic liberal/neo-orthodox models leave him wanting and empty, so he grasps for a political/social fad in hopes of finding something truly redemptive. Sort of pray he will try the timeless Gospel of grace instead, and find real, lasting 'liberation' there.
A better critique of Liberation Theology is by Ronald Nash.