I was worried about this. I'm small potatoes but we make an open source app that can connect to self-hosted or paid-hosted services. So if they could have forced WP, they could have easily forced me too, now there is a baseline set.
To even get approved we had to make sure the App doesn't offer any sign-up or even billing info at all. And still went round and round for approval explaining how paid services, if any, are completely outside Apple realm.
To even get approved we had to make sure the App doesn't offer any sign-up or even billing info at all. And still went round and round for approval explaining how paid services, if any, are completely outside Apple realm.