Reminds me of how Aeroflot, the Russian national airline, would sneak an insurance into your booking at the very last step, even if you skip right past all the additional steps (hotels, car rental, other bullshit) in the sidebar. They would "accidentally" add it to your order and you have to actively click "remove" to not throw several hundred rubles away. It's almost like they know that no person in their right mind would buy their "insurance for the duration of flight" so they have to push it like that because someone worked hard for that partnership.