Lee Irons looks at the issue. The bottom line, according to Lee, is that Wright uses traditional terms with untraditional definitions.
Here's his conclusion after looking at the evidence from Wright's own writings:
- sin is an impersonal evil force, not personal rebellion against God;
- sin has bad consequences, but does not elicit God's punitive wrath against the sinner; and
- the cross is to be understood as some version of the Christus Victor theory in which Christ defeats evil by letting it do its worst to him, not as a penal satisfaction of divine justice.