Yes and No. Primarily No; sadly.
Closing subjectivity-inducing / opinion-based questions we have had a spotty track record on; possibly getting better. But NPOV (or SE equivalent) answers and comment-chain restraint hasn't worked as well without active moderation I'm afraid. A draw back of being a soft science stack with a highly passionate membership.
The hands off approach won't make the site any worse than it already is; but with a lack of entrainment of the current membership, it isn't going to get any better either.
So I'm of the mind that laissez-faire has capped out for Politics.se and we need to have a condensed set of clear, possibly arbitrarily ontological, rules defined in Meta and enforced through escalating and consistent punishments up to and including the timeout penalty box.
We'll lose only a few members and entrain the rest so effectively as to increase the overall quality of the site notably.