If it's true that by justice God means something diametrically opposed to our understanding of that word, what, then, are we to make of Jesus when he talks about love?
Without hell, there'd be nothing to save anyone from. Without hell, the sole recommendation of Christianity would be the love of God proved through the atoning sacrifice of Christ on the cross.
While in every last way pretending to be about practicing love, it's really about instilling fear. What Chan is really saying here is, "Be afraid. Being wrong about hell has terrible, terrible consequences."
Die a Christian? Up to heaven! Die a non-Christian? Try to make sure that before it closes shut someone tosses a bag of marshmallows into your coffin. That's the Christianity that has got to go.
You might think that if someone is powerful enough, say ... omnipotent, then anger would be unnecessary. And yet it makes a lot of sense that we humans would expect God to get angry.