No, the article even says:

Out of the box, Safari displays your existing websites beautifully on the edge-to-edge display of the new iPhone X. Content is automatically inset within the display’s safe area so it is not obscured by the rounded corners, or the device’s sensor housing.

That is what they said, but look at the screenshot of the unmodified website. It looks terrible. They should have filled it with black.

Filling it with black would be the most sensible solution. Especially since it’s an OLED display. Their current solution is to fuck with the original website design. Maybe the website devs wanted their horizontal bars to stretch from edge to edge and not be padded by whitespace? Quite brazen of Apple to interfere this prominently with other people’s work.

It's less infuriating if you read it in Jony Ive's voice.

Sadly that is more infuriating.

Luxurious, hand crafted, precision infuriating, we went all over the world and collected only the best infuriating and merged it seamlessly into your rage.

Few people irritate me (that I haven't met) more than that guy does.

It's irrational but there it is.

Nope; just a few lines of CSS and you're good: https://news.ycombinator.com/item?id=15315357

Apple advertised about making a screen that spans the whole device, and now they are pushing the burden to the developer. :(