It actually does mean exactly that in the aggregate. There are huge number of people that don't use pass codes not because they don't care, but because they are inconvenient. This technology is for them, and it will have nothing to do with "magic" when they adopt this fundamental improvement (that happens to be also a heavily marketed main differentiation from the previous model).

As for the people that never used a pass code because they weren't aware/didn't care... probably less adoption, but just because the feature is so heavily marketed, many of them will also use it.

But yeah. Significant numbers of people who didn't secure their devices with pass codes will now do so. No magic required.