Firstly, the inevitable conclusion is that they have something to hide. This is the age of transparency, and, whether people like it or not, what is not transparent is assumed to be wrong, corrupt, or biased until proved otherwise. I think of a scene from Not the 9 O’Clock News where we see pictures of a house with its roof blown off by a hurricane. “We rang the Gas Board, and they answered “no comment.’” We are led to think that the Gas Board is responsible for the hurricane.
Secondly, QMUL and King’s are going against basic scientific principles. In Popperian science we pose falsifiable hypotheses and then do all we can to tear them down. Hypothesis are never true, they are simply not falsified. This process should include other scientists being able to manipulate the data.
...Finally, the universities may have failed to notice that customs around sharing data in science are changing rapidly. We have recognised that huge value is lost by scientists taking their datasets to the grave with them. More and more funders of research require the release of data they have funded, and journals like
F1000Research require authors not just to make their data available on request but actually to submit their data with their study so that anybody can use the data either to confirm or refute the study or do other studies.