Whether Walt can access the Genie+ pass outside of the app is irrelevant to the argument. The argument revolves around how Walt obtained the pass, and since he's both a member of the vacation club and hasn't prostrated himself, he had to give the offerings. How he can access the pass doesn't really matter.

1. The chocolate-chip banana bread I left to cool on the stove top is half eaten. My roommate has a chocolate smudge by his lips. My hypothesis is that my roommate ate my banana bread.

2. A brand new ice cream flavor is locked behind a store's membership program. You can gain membership by being an employee of the store. Alternatively, those who aren't employees can gain membership by a $10 monthly fee. Brad has tried the new flavor, but he's never paid a monthly fee. Therefore, Brad is an employee of the store.

3. Not every video game works well as a movie. For example, the Assassin's creed movie was poorly received.