I quite liked the tl;dr, except that it left out how most of the article is "...and why". We've all heard the advice, but the article is trying to explain why the advice is true. I think an ideal summary would mention that.
OK, I understand. Though I think the article did a terrible job of explaining why: like, why do deadlines cause engineers to become affected by Student Syndrome? It just mentions it at a superficial level, which is perfectly fine for its purposes.
edit: also thanks for writing that article, it's great.
edit: also thanks for writing that article, it's great.