The GameSpot dev team has added a new toggle that allows you to disable the autoplay of videos in regular articles. It is located here:
If you'd like to disable autoplay for videos in regular articles, click this new option so it appears as above (toggle is on the right side and the option is grey). If you're like to turn autoplay back on, click it again to return the toggle to the left side where it will turn black. This applies for regular articles, but if you click a link to a video post those will still autoplay.