MapleStory’s Massive Winter Update Continues with Awake: Flicker of Light Available T

How come a site like that posts about a Maple update? Genuinely curious since most of the other articles on there, at a glance, are about more generic business things rather than listing game updates.

It's a press release.
To the site it's no different than "Pepsi announces launch of new product." They take the text provided by the company's press relations department, and publish it as-is.