I suggest you re-read this list: https://news.ycombinator.com/newsguidelines.html
I don't think it's quite as bad as the above commenter seems to think it is, but they're welcome to that opinion.
What do you think we gain in the discussion by debating the quality of writing (which was entirely passable) instead of the substance of it? To me it's quite clear: absolutely nothing.
The topic in this comment section is the "transition year" in Irish secondary schools. The format of the website which introduces that topic is tangential to that topic. I don't know where one would get the idea that a tangent that's not about CSS styling is not a tangent.
If discussion of anything but the underlying subject of the link - including references to the writer, quality, and content of the writing - were considered tangential to the point of being against the guidelines to discuss, then surely so would commenting that another comment is against the guidelines.