I'm sure it's much easier to just open up Safari and type in the right URL...
It is. (This has always been the silliest part of Apple's posturing-banning apps that with the ability to access adult content, even if that was not their intended purpose.)
No, I think the issue was never about preventing people from accessing adult content on their Apple phones/devices. The issue is about Apple not wanting to sell certain adult content on their store front.