Yes, of course they could. Individual people make the decision to practice birth control every day, and a vast democratic assembly of millions voted in by their peers can make that decision as well. Meanwhile in the US, reproductive policy is dictated by nine unelected ministers: an objectively far less democratic process, yet our media never describes the US government as "authoritarian." Because it's not a term meant to usefully delineate important differences in form and function, it's a vibes based epithet meant to be wielded against geopolitical enemies of capitalism. It's a thought-terminating cliche, deployed highly selectively against anti-imperialist societies to artificially cast proletarian authority as uniquely evil while tacticly normalizing the authority of billionaires and corporations.

In practice, authoritarianism is when you are objectively more democratic in function and policy than western countries, but commit the cardinal sin of using that authority to safeguard your sovereignty, people and resources from the inhumanity of global capitalism.