I don't even understand how these could be acceptable terms for the european commission:

   For apps distributed via alternative app marketplaces or the web, Apple will charge a 5 percent Core Technology Commission.

This is just basic racketering. You owe nothing to Apple, you don't use their resources, then they could still profit of their dominant position on these devices to extort such a high fee (because 5% is not a small amount) from app developers and users.