Re: Terrible writing
Maybe it's not terrible writing, more that we haven't made it clear enough and you've misread it. I've tweaked the article to make everything crystal clear.
4K readiness is a short way of saying you've got enough bandwidth to stream 4K video comfortably: 15Mbps+
The number of people with 15Mbps+ bw worldwide decreased 2.8% *quarter to quarter* ie: comparing Oct-Dec with Jul-Sept.
The number of people with 15Mbps+ bw worldwide increased 32% *year to year* ie: comparing 2014 to 2013.