And you know full-well that this is an assumption without facts to back it up. Mac OS already scaled to an additional billion devices, overtook windows PCs and didn't see a corresponding explosion in malware.
People like to think of Microsoft as a nerdy tech company, and that Apple is full of hipster designers who don't understand computers. That's total horsecrap. Apple is probably more technical-minded than Microsoft; they've always built their own hardware and used that tight integration to develop software that wasn't otherwise possible, going to back to the classic Mac.
Apple get the technical decisions right. Whether it's the Mac's Intel transition, 64-bit transition or iOS's sandboxing and use of 64-bit ARM chips. Support for WebKit has done the world a huge favour, as has the investment in LLVM. Now they're open-sourcing swift and doing all development in the open on GitHub. They're developing a next-generation filesystem which we can test this year and which will be public and bootable in 2017.
Microsoft? They couldn't even figure out how to transition from 32-bit Intel to 64-bit Intel. They spent years harping on about this ".Net" crap, open-sourcing little bits and restructuring the platform every couple of years when they wondered why nobody cared about it. They tried to rewrite the entire OS using .Net (Windows Longhorn), it was an absolute performance pig and after several years they scrapped it and released Vista. They've been working on their new filesystem (ReFS) since 2012, but it's so far from done you still can't even boot from it yet. Since then they've been messing with the UI while their users groan and complain about it.
MS has changed and is a more interesting company these days. My point is that this assumption that Apple doesn't get security or "raw computing" in general because they don't bang on about it all the time is completely untrue. Look at the actual records. Apple has been making great, forward-thinking decisions for decades.