The actual product page says a cable is not included.

http://www.apple.com/shop/product/MNF82LL/A/87w-usb-c-power-...

This is a joke. There is definitely no extension cable.

https://9to5mac.com/community/does-the-late-2016-macbook-pro...

FYI if you right click in youtube you have the "Copy video URL at current time" option.

Here's the video at 1:50: https://youtu.be/zkOKtwiceVw?t=110

Not sure if that was a joke...

Wrong cable. That video is showing where the extension cable is, not the USB-C cable. And that's talking about the MacBook Pro itself, not buying the power adaptor as a stand-alone product.

Whoa whoa whoa that's awful packaging design