I'm presuming you viewed it on a mobile device. On my laptop running firefox I had this experience.
My laptop is presently docked to the right of my monitor on my desk. When docked I use a keyboard and mouse with the actual laptop being slightly to the right using its touchpad is somewhat awkward but do-able.
Space bar to go down doesn't work, page down/up doesn't work home end doesn't work arrow keys don't work. Try clicking on the little arrow that doesn't work. Try dragging the screen that direction with the mouse doesn't work. Grab scrollbar manually and pull it down doesn't work. I literally skipped that section because I couldn't figure out how to read it. Note I didn't realize you could grab the scroll bar manually do scroll horizontally because I have never had to do that.
After reading this thread I tried reaching over awkwardly to use the 2 finger scroll mode on the touchpad keeping in mind the normal sensitivity is such that one full swipe top to bottom about 2 inches is 2 pages of text. So about 1 inch per page of text.
Swiping through the first section the "overview" took 62 awkward swipes left to right about 2.5 inches each. About 155 inches of travel almost 13 feet for the last few it actually went down while I scrolled sideways which made me pause for a moment.
Scrolling through pages of content is so basic that going through the massive work of making a beautiful device and all the software required to run it and making reading about it that painful is remarkable.
Its like launching a new high end clothing store and making the entrance a dance dance revolution pad where one must complete a hip hop number to enter.
It isn't merely subjectively terrible.
Edit: On my phone also running firefox in vertical orientation it scrolls normally but cuts off a bit on the right hand side, in landscape orientation it scrolls normally AND looks correct.
Did you have to scroll right 62 times to actually view all the content?.
Were all the normal keyboard/mouse wheel navigation methods broken?
Seemingly good design would imply working for the 90% that don't presently use mac or detecting that a device isn't a phone and presenting a usable interface.
Seriously how do you screw up something simple like scrolling?
Firefox 63 on Mac works fine for me on this page. Spacebar, page-down, and scrollbar all work (i.e. the content moves a page at a time but horizontally).
Chrome 69 on linux scrolls horizontally at a much saner speed and has working arrow keys but is a fail in every other way mentioned. Firefox 65 on linux is a horrific user experience as described.
An article unlike a computer isn't a new exciting tech marvel it should be simple and work on any device that can render text and multimedia.
I've tried Firefox, Safari, and Chrome. And in every single one of them, scrolling works fine with spacebar, with the mouse, with Page up/Page down, and even that vim*-extension's 'd'.
I also enjoyed the effect. For anything I visit repeatedly, such as webmail or github, or news websites, I prefer a "lean" implementation. But a product page that I will visit may twice in its lifetime? Knock yourself out!
My laptop is presently docked to the right of my monitor on my desk. When docked I use a keyboard and mouse with the actual laptop being slightly to the right using its touchpad is somewhat awkward but do-able.
Space bar to go down doesn't work, page down/up doesn't work home end doesn't work arrow keys don't work. Try clicking on the little arrow that doesn't work. Try dragging the screen that direction with the mouse doesn't work. Grab scrollbar manually and pull it down doesn't work. I literally skipped that section because I couldn't figure out how to read it. Note I didn't realize you could grab the scroll bar manually do scroll horizontally because I have never had to do that.
After reading this thread I tried reaching over awkwardly to use the 2 finger scroll mode on the touchpad keeping in mind the normal sensitivity is such that one full swipe top to bottom about 2 inches is 2 pages of text. So about 1 inch per page of text.
Swiping through the first section the "overview" took 62 awkward swipes left to right about 2.5 inches each. About 155 inches of travel almost 13 feet for the last few it actually went down while I scrolled sideways which made me pause for a moment.
Scrolling through pages of content is so basic that going through the massive work of making a beautiful device and all the software required to run it and making reading about it that painful is remarkable.
Its like launching a new high end clothing store and making the entrance a dance dance revolution pad where one must complete a hip hop number to enter.
It isn't merely subjectively terrible.
Edit: On my phone also running firefox in vertical orientation it scrolls normally but cuts off a bit on the right hand side, in landscape orientation it scrolls normally AND looks correct.