That's correct. It's mentioned here but a little bit buried https://confluence.atlassian.com/cloud/verify-a-domain-for-your-organization-873871234.html
We maintain the ongoing check of your text record as a security measure against cases where an attacker may have temporarily gained illicit control of a domain.
Based on your valuable feedback, we have released several new features to help you gain administrative flexibility with authentication policies, visibility into shadow IT with automatic product disco...
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