Ok so apparently it is an article, not a bulletpoint of the other article as the ui would suggest. According to the article, some model made a while ago predicts we should only be at 1.3% warming this year and not 1.5%. That missing 0.2% is whats the mistery, so kind of misleading headline, especially if you put it in a place that doesn't make it look like an article at all. I only found out because I accidentally clicked on it.
Maybe the models didn't place it as the hottest. Even with an upward trend, not every year has to be hotter than the previous and other factors (or even model inaccuracies) can yield unexplained results.