Not a bug, a feature
Normally that's meant as a joke, but in this case it really is a feature. Not only is it A feature, but it's THE feature as far as enterprises are concerned. Take this away and force them to install the apps they need on their corporate iWhatsits one at a time through the app store and you wouldn't be able to give the things to corporate users.
Sadly, as with many features designed for convenience, it's also an attack vector. Such problems shall always exist as long as non-geeks want to use technology.
Biting the hand that feeds IT
