While they were live, they didn’t steal data or gain control of a victim’s device,
....And while the worst effects you’d feel as a victim in this case would be a quicker battery drain and a higher data bill, this latest wave of iOS malware is most notable not for what it does but for how it got there.
Which is a far cry from an unremovable app. It didn’t even get outside of the sandbox and wasn’t an escalation of privilege attack.
The comments upstream are debating whether there's been malware on the app store. There has. Goal posts aside, it's worth remembering that no app review process is infallible, including Apple's.
The actual submission is about apps that install an unremovable piece of software that cause an escalation of privilege. The article you posted is about apps that can be removed just like any other software, don’t escape the sandbox and the most harm they can do is use an above normal amount of CPU and data.
Those aren't links to malware. Those are links to stories about malware that was removed from the App Store. Kinda makes the opposite point of what you're implying, doesn't it?