Did you read the article? There is no irony here, she immediately points out her lack of understanding of fundamental accessibility principles. That is why she wrote about how we as an industry allow that to happen (senior engineers who know nothing about catering to disability).
sure there is. it's like an investigative journalist learning nothing (or failing to apply lessons learned) about good investigative journalism while writing about it.
another comparison would be like a professional driver admitting he knows nothing about hand brakes, writing an essay about why he knows nothing about them, how he can learn and be more knowledgeable about them...and then proceeding to drive 1,000 miles with the hand brake engaged.
i wouldn't expect her to learn or apply all of WAI-ARIA, but you'd think after doing so much research on the subject, she could change a simple font-family tag to help her case.
And she was more pointing out how most developers are not ever taught or required to make their projects accessible (at least by company standards if not legally)
