Apple surely understands that lack of offline maps is a huge gap. I bet they are working on fixing the issue.
When Apple releases offline maps, that will cut the number of new WOD customers down regardless of pricing. There are simply less people
looking for a solution out there.
To me it seems that
now is the right time for getting people onboard with a subscription: People may subscribe due to WOD being the only way of getting offline maps today, but they might fall in love with the numerous other features in WOD that Apple won't be adding. Thus WOD could now onboarding new customers at fast pace and get a chance of retaining them after Apple fixes their product gap.
Sustainable differentiation comes from features that are great for serious athletes, but bad for coach-to-5K target group: Apple needs to target their offering to widest possible group. With this, Apple needs to embrace simplicity in Training app simple. WOD stay attractive by keeping their focus on customizability. More advanced (or even complex) features, the better.