It matters because it means that we are heading even higher temperatures, because atmospheric concentration of CO2 doesn't go down but up. And because it takes time to heat a planet it also means that we have already emitted a higher temperature increase than that. Same models predict a 2.6-4.8 degree increase by the end of century if we continue emitting current amounts of CO2 to atmosphere. 0.3-1.7 degree if greens take over the world this year and we eliminate all emissions faster than reasonably possible. [Those are IPCC ranges for two different scenarios often used by skeptics as 0.3-4.8 range for saying scientist don't know at all.] . The high scenario goes higher than that next century even if it stops emissions late in century.
It also leads a slight increase in violence, and extreme weather events. Paradoxically it may cause part of a year somewhere in the world being much colder than it has used to by changing wind patterns, while making other places much hotter.
This is below current inter year variation caused by oceans either storing or releasing heat. But don't forget its just a battery for the energy and not affect the total accumulation of energy in the system. But its increasing the baseline which the variation occurs, so high's will be higher.
Big impact is more extreme weather phenomenon happening more frequently, so once in a decade storms become once a year storm, once in a decade heatwaves happen every other year.
As for this year, middle east stole Scandinavian winter weather. They got snow that normally ends up here instead, and all we got was rain for Christmas.