This pending legislation is about payment- not another App Store.
All the App Store needs is a PayPal button as an -option- and all this hubbub would be over
Truth be told we as consumers dont really care about who we pay for IAP. This is why the discussion has included the appstore, something that more than a few consumers wish to have an alternative to.
(Yes, you can end a sentence on a preposition. English is not Latin)