Note that the video shows the user able to access the desktop version, but the article is about accessing the mobile version. Here's what the mobile UI looks like: http://i.imgur.com/oCveo.png
I cannot test it myself. But there are many people in the comments saying it doesn't work on co.uk either. Maybe it was only working when the uk version was outdated.
I tried it with a user agent string modifier (went to maps.google.com.au) a few hours ago, and it worked. I tried it again, redirects me to the main search site.
Stop making excuses for Google. This is ridiculous ffs.
[0] http://www.youtube.com/watch?v=_Z8vfzurnKw