An experiment was designed to test a particular hypothesis and found that hypothesis wanting. As long as the methodology was good and the reporting honest that's a perfectly legitimate endeavor.
Consider Michaelson-Morley. It was thought at the time that an observer should see light traveling at different speeds depending on his, and the emitting source's, speed relative to the ether. The two scientists designed an experiment to test that...believing the hypothesis was correct. To their utter amazement they found it wasn't. They were so upset by the result they refused to accept it, repeating it over and over, always finding the same thing. They were honest and published what they'd found. It turned out their experiment was probably the most important in the history of science and resulted in the theory of relativity which overturned our most basic notions of space and time.
The Royal Society's website shows a number of Lockwood's published papers and this one isn't there. The Royal Society is not yet able or willing to sell me this particular paper at any price.
Let's agree that the numbers have not been made public even if these are in fact Lockwood's conclusions. Let's also agree that we would not be adhering to the scientific method if we were to accept the conclusions without seeing the data.