To me, it just came across as petulant. Ironically, the “conclusion” was basically a TLDR for anyone interested.
Way before “tldr” became something on the internet, research papers had an abstract and news articles had a lead that tells you what the article is about.
I think this article is very good but replacing the abstract/lead by a snug paragraph is not a good idea.
Fun fact, the top part of a news article is actually called a “lede”. This originated not because it’s actually a different word from “lead”, but because in written form the latter could be confused with the metal “lead”. It’s described as “a deliberate misspelling of lead”.