She has tons of policies an various subjects. But by preempting the debate on her supposed weaknesses, she kills these, which will allow her to be able to promote her actual policies without then being victim of diversions on these weaknesses.
For instance, if she proposes to increase social budgets, and to reinforce prevention rather than repression by police, and to create more jobs in schools to help out, people will still remember that she wants to send the bad boys to military camp and won't see these lefty policies as "indulging the parasites"... In the long run, we're all dead. John Maynard Keynes