From the article, I presume this is being done in the name of "cyber security" (least common denominator strikes again.) In newer versions of Android, a few warnings/confirmations are shown prior to sideloading an app. I think the best solution here is to gate-keep sideloading behind Developer Mode. Enabling Developer Mode, then enabling side loading, would be complex enough to stop brain dead drive-by side loading from occurring. And (mostly) only people that know what they're doing enable Developer Mode.