Their argument is that we have yet to determine the real-world consequences for the correlation observed in the experiment. In other words: yes, ibuprofen seem

Their argument is that we have yet to determine the real-world consequences for the correlation observed in the experiment. In other words: yes, ibuprofen seems to affect something, but we don’t really know whether that effect is significant enough to warrant avoidance of ibuprofen. It might have no observable impact. (Not saying I agree—this is just their argument.)