Its only been a week. I don't think there is accessibility issues (barring perhaps colorblindness, but there are ways around that). I think some people just haven't sat down and taken the time. I don't claim ninja has accessibility issues just because I don't understand it. I know I haven't taken the time to learn it.
It's as simple as following the glowing lines. Honestly in base content, even if you aren't doing it optimally, you're fine. Most people aren't doing their jobs optimally in base content.