Given how aggressive apple has been at controlling the ‘family friendly’ nature of iOS, blocking anything perceived as unsavory, even apps that can potentially be used for accessin porn, I don’t think you have to look any further to find an answer. Bitcoin is something apple doesn’t like and can’t control, and the fact that it is already linked to illegal activity makes it a slam dunk to ban. It is maybe surprising that it took them this long to get around to it, but it isn’t like the app reviewers are perfect or consistent.
Imagine how Apple would react to a TV crime drama where a mobster uses an iPhone to pay for a shipment of drugs by bitcoin.
The obvious facts of the situation are enough to explain this. No need to invent anything new.
