Reading her stuff, it seems like proposals to separate Apple from the App store indicate a total lack of awareness about InfoSec, and at best a poorly researched policy proposal from a technical standpoint. The only reason the App Store isn't a simmering cesspool of malware is that Apple heavily moderates what gets on there, and Google does somewhat the same. That doesn't mean that there perhaps isn't a less MSFT + IE type of solution, and I don't necessarily disagree with her, but her not mentioning that sort of nuance at all makes it rather clear the policy doesn't extend too far into anything more than populism.