end of the article "After months of investigation, physicists have ruled that the speedy neutrinos observed were likely due to a faulty connection in an optical

end of the article "After months of investigation, physicists have ruled that the speedy neutrinos observed were likely due to a faulty connection in an optical fiber of the Master Clock." i really do wonder why negative attitude to my "were likely goes both ways" - they have ruled (not proved) that something is likely. please. either the article is stupid or those who have ruled.