I think you need to look at the system of incentives and alignment
If apple's billion dollar app distribution monopoly money hose results in security problems for people, then their billion dollar app distribution monopoly money hose will be in jeopardy since it's justification comes into question.
So what you see as a problem is what makes me feel the best about it. Apple is aligned with only secure apps on their store and apple is very unaligned with insecure apps.
To apple security is not just a cost center, but a pillar of the justification for their monopoly position.
If apple's billion dollar app distribution monopoly money hose results in security problems for people, then their billion dollar app distribution monopoly money hose will be in jeopardy since it's justification comes into question.
So what you see as a problem is what makes me feel the best about it. Apple is aligned with only secure apps on their store and apple is very unaligned with insecure apps.
To apple security is not just a cost center, but a pillar of the justification for their monopoly position.