If you had this sneaking suspicion that your skill rating on Overwatch control maps were not reacting correctly, it turns out you were correct. And Blizzard has hotfixed the issue.
Community manager Lylirra confirmed the news last night: "Last week, several players reported that wins and losses on Control maps (Ilios, Lijiang Tower, and Nepal) during Competitive Play were not correctly influencing Skill Ratings. The exact problem causing this to happen was identified early this morning, and we were able to develop a fix shortly after. That fix has now been implemented on PC and Xbox One in all gameplay regions (and will be in place when Competitive Play goes live on PlayStation 4)."
Competitive mode was officially launched earlier this week on PC and Xbox One, and will be coming to PlayStation 4 soon.
John Keefer posted a new article, Overwatch Skill Rating Bug has been squashed ... with malice
Nobody does post launch support better than Blizzard. :D