I was reading through the "School Powers" entry and it seems pretty straight forward, however, unlike the d20 SRD it doesn't mention anything about not being able to select Divination as a prohibited school.
The reason(s) for this in the SRD are pretty obvious; Divination contains Read Magic, Detect Magic, etc. The first, at the very least, being crucial to the Wizard's abilities as a spellcaster.
Was the lack of a statement about the Divination school intentional (Would that mean that Read Magic would be "universal" as a class ability and not actually in the Divination school anymore?) so that it can be selected as one of the two a specialized Wizard gives up? Or is this an oversight and that line simply left out by accident?