You missed a few sentences, starting with the first one:"These results confirm theoretical predictions of the atmospheric greenhouse effect due to anthropogenic emissions"
- "Scientists have observed an increase in carbon dioxide's greenhouse effect at Earth's surface for the first time."
- "The research also provides further confirmation that the calculations used in today's climate models are on track when it comes to representing the impact of CO2."
- "The combination of these measurements enabled the scientists to isolate the signals attributed solely to CO2."
Got that? They're only talking about confirmation of the greenhouse effect as it directly applies to CO2.
The results don't tell us anything about the amplification that's supposed to come from water vapour. In fact, the news release clearly states that CO2 was isolated from water vapour and clouds. Thus, the reported results tell us nothing about the merits of the AGW hypothesis.