The article has no basis in reality. The paper itself indicates the sea level is still rising. The papers just about the rate of rise. Which if your geotechnical engineer designing coastal features, you should incorporate a more accurate projection of sea level rise.
This paper does nothing to disprove climate change at all, it doesn't even say that. This article is using this paper incorrectly to make assertions about things the paper didn't say - this is why using propaganda outlets for science news is a really bad idea.