Even if you're a New Yorker-calibre writer, you won't be able to write anything of "quality" in less than an hour.
Now imagine if you're not a New Yorker-calibre writer!
(I'm a pretty snobby reader and still like the occasional techie-founder post. You don't have to be a copywriting wizard to write something substantive, but it isn't enough to just commit text to the page. You can tell when someone has thought deeply and laboured over a piece of writing. The idea that you can write something worthy of other people's time in one hour is cut-and-dry clickbait.)