A thousand paper cuts. For one, if I click on any of the text, anywhere, it takes me out of context to somewhere else. Another: It can use up to ~20% of my screen space to show content I care about. Most of the rest goes to menus and trending nonsense.

it's hard to read?

I actually find it easy to read since the format requires users to break things up in to what feels like shorter, bite-sized pieces.

We used to call those sentences. Grouping multiple sentences together to form paragraphs were not difficult to read.

cause they've burnt our attention spans

More like I'm not really interested in hearing another quack talk about their opinion as though it were fact, chipping away at my very limited time.

About 15% of the page is available for the actual content. The rest is distracting clutter (eg. the share bar thing repeated over and over again after every sentence almost) or just void.

You have to scroll like crazy to read a very small amount of text

The text overall is extremely long and skinny, like a receipt, thats a highly suboptimal aspect ratio.

Comments are formatted exactly the same as the article, the article doesnt seem to end properly just morphs directly into comments.

Single sentences floating alone in a sea of crap is not a good way to read.