Welcome to the #dominoforever Product Ideas Forum! The place where you can submit product ideas and enhancement request. We encourage you to participate by voting on, commenting on, and creating new ideas. All new ideas will be evaluated by HCL Product Management & Engineering teams, and the next steps will be communicated. While not all submitted ideas will be executed upon, community feedback will play a key role in influencing which ideas are and when they will be implemented.
You are correct. The Domino server can be configured in different ways. Intentionally and under full control of the customer. There are no plans to change this behaviour because it would limit certain use cases that customers have already implemented.
I did not test this, but can't you simply add the deny access group to the not access server field?