I originally had the so-called single-storey a by default, but it looked too confusing at coding text sizes. I even considered offering a "purist" version with that simpler a, but decided against it (too many options would confuse buyers). In my opinion, the simpler structure of a is better described as "writability" rather than legibility, and just because the new design does not follow the original does not mean it's bad. Whether it actually improved is a matter of opinion, but I believe in my decision in the context of coding.