But there are two meanings to the word 'connecting'. There is the one with the through ticket, and there is the casual use for anyone who gets off one plane and then gets on another at the same airport, regardless of what the ticket situation is. Given there is no further mention of the requirement for a through ticket in the blurb which spells out what classes you can fly in on, and the need for the outbound flight to also be oneworld, I'd say that's ambiguous rather than clear-cut.
BTW, hasn't the blurb changed? I thought there was some discussion recently about CE being removed from the list, leaving it as long-haul only