My opinion is that this is deceptive advertisement. The Litecoin community, including its forum, has been pushing this idea for some time. The central thesis behind this is to raise awareness to Litecoin, so speculators can pour money into Litecoin.
The article itself seems to have been written by someone inside the Litecoin community or was heavily influenced by the Litecoin community. No standard article about computers and GPUs go to such lengths explaining a cryptocurrency.
Considering that it is Christmas season, and considering gaming is a big part of the computer sector, it is safe to say most GPU sales are about gaming. I don't doubt some are for Litecoin, but I suspect this is a secondary reason.
More hype than anything else.