The author touches upon a topic that I also have seen and experienced countless of times in my life, which is the need for a better first-run accessibility settings onboarding experience for users that would benefit most (e.g. senior citizens), that also can be trivially skipped by more tech savvy users.
This new onboarding flow can be triggered by apple determining a person's first time ever signing into that model iPhone, under the assumption that most new users to the platform would benefit the most from becoming familiar with these accessibility features and where they live in the settings from the get go.
I know many senior citizens (including my parents) who would have greatly benefited from a heavy accessibility settings onboarding experience, due to many of the issues the author mentioned regarding eye sight and vision related age decline.
It's a shame that a company like apple, one that pioneered usability and human factors in designing products for people since their very beginning (see Human Interface Guidelines [1]), buries these crucial accessibility settings and makes them so difficult to reach for the people that need them the most.
I hope someone from apple is reading this and can champion this topic internally to improve the lives of senior citizens, cause we'll all be old some day scratching our head trying to use the latest and greatest iDevice...