The promotion is simply made in an effort of increasing our players security awareness and pointing them towards best practices, such as using an audited, secure password manager. The 1Password promo has zero financial benefits for CCP.
It’s just about you and your account safety It’s not required and as clearly stated in the blog, completely optional and even if you go for the 6-month trial and then don’t subscribe once the time is up, you don’t lose access to the passwords, you simply can’t edit or add new ones.