Monero doesn't fix that.

And the point made in the article about exchanges and services disallowing deposits which were either mixed or from a coinjoin, or even warning the customer for coinjoin after withdrawal, those same services won't even touch Monero. So yes, while Monero has better privacy that on-chain bitcoin transactions that haven't had privacy protection measures (e.g., coinjoin) perform, KYC is a problem for Monero users just as it is for bitcoin users.