There is nuance here, in the degree to which uncertainty due to lack of evidence is surfaced in scientific communications for the public.
Take for instance, the behavior of dogs. Science cannot [yet] objectively answer the question of how much the subjective qualia of a dog is comparable to the qualia of humans. What then can we say about whether dogs feel 'love'? Some might say that science has not yet answered this question; that is fine.
But others get overeager and assert that because science hasn't demonstrated that dogs feel love, the scientific position is to assume all apparent demonstrations of love from dogs are little more than elaborate food seeking behavior. This goes too far, it assumes a lack of evidence is evidence to the contrary, implicitly treating science as complete until proven otherwise. I think this overzealous sort of 'scientific' thinking reflects a dogmatic attitude which is actually antithetical to the real scientific method.