In other words, he is a libertarian type, that doesn't support the welfare state, and by extension doesn't support requiring employers to offer maternity and paternity leave.
He has also argued that Scandinavia is doing well due to the free markets, in spite of its social policy, in his book Scandinavian Unexceptionalism.
PS - Just trying to give some context. "Nordic Gender Equality Paradox" isn't an apolitical academic study, it is a book trying to push a certain political agenda.