Apache Incubators are tracked on the clutch page http://incubator.apache.org/clutch.html and as the article mentions that page at least doesn't know about any new committers, or that the project has a tracker.
So it would certainly help if you fixed those project information pages.
Also you might have a different definition of committer. Although you say you added 16 committers, there seem to have been only 5 hackers who did 71 code commits if you look at the svn repository after it got imported last month. Which at least looks a bit less than LibreOffice which had 69 committers who made 1392 commits in the last 30 days.