Apple could have offered APIs for managing 3rd party subscriptions from that screen, but it's more convenient for them to have a closed system, private APIs, and use their own non-extensibility as an excuse for their closed payment system.
It's also Apple's specialty to create false dichotomies and shit sandwich bundles: it's either the 30% cut or daylight robbery. No third option (in reality PayPal is more consumer-friendly and allows managing subscriptions in one place from more than iOS).
The whole App Store model is a false dichotomy between the 30% cut and Disney-like moderation vs raging malware that will take down the whole mobile network. No third option (so you can't have Fortnight, or any app showing a nipple).
It's also Apple's specialty to create false dichotomies and shit sandwich bundles: it's either the 30% cut or daylight robbery. No third option (in reality PayPal is more consumer-friendly and allows managing subscriptions in one place from more than iOS).
The whole App Store model is a false dichotomy between the 30% cut and Disney-like moderation vs raging malware that will take down the whole mobile network. No third option (so you can't have Fortnight, or any app showing a nipple).