Can configure 3 replicas and higher min durability level despite docs saying it is unsupported

So according to our docs (https://docs.couchbase.com/server/current/learn/data/durability.html) it says:

Couchbase Server supports durability for up to two replicas: it does not support durability for three replicas.

That said, when I create a bucket in the UI (and through the rest api as a consequence) I can define a minimum durability level and configure up to 3 replicas just fine.

• Click create new bucket
• Select 3 replicas
• Select a minimum durability level
• Click save

Should it prevent the user from doing that combination if we do not support it?