Does the privilege to create an adjustment journal really become unavailable once the POST privilege

I tried copying the Accounts Payable Invoice Supervisor role and removing the Post Subledger Journal Entry to General Ledger, since the client requires separating the roles for creating and posting subledger journals. However, after removing it, the Create Adjustment Journal button also disappeared.

Our expectation was that since Create Subledger Journal Entry Online was retained and only the posting privilege was removed, the user should still be able to create a subledger journal.