it doesn't, but there is already a competing system based on the national id card, which is just simpler to explain to people ("you log in with your ID card" vs

it doesn't, but there is already a competing system based on the national id card, which is just simpler to explain to people ("you log in with your ID card" vs "you log in with a third party identity provider where you need to create an account"), and the people who championed the old system are no longer around.