Even with KnowledgeUser I get: Be sure the action is valid for the current state of the article, and that you have permission to perform it, exception

Question

I have the below test class:

@isTest
public static void batchManagementDraftTest() {
        User u = TestDataFactory.createUserWithRoleLeader();
        User u2 = TestDataFactory.createAnotherUserWithRoleLeader();

        List<Knowledge__kav> queriedKAV;
        List<Knowledge__kav> kavList;

        System.runAs(u) {
            List<Employee__c> listEmployee = TestDataFactory.listEmployeeSingle();
            kavList = TestDataFactory.createKnowledgeInternalFAQ();

            queriedKAV = [
                    SELECT KnowledgeArticleId, createdBy.UserRole.DeveloperName, LastModifiedBy.UserRole.DeveloperName, RecordType.DeveloperName
                    FROM Knowledge__kav
                    WHERE id =: kavList[0].id AND LastModifiedBy.UserRole.DeveloperName != 'Super_User'
                    AND ((LastModifiedBy.UserRole.DeveloperName= 'Leader' AND RecordType.DeveloperName != 'CC')
                    OR LastModifiedBy.UserRole.DeveloperName != 'Leader')
            ];
        }

        System.runAs(u2) {
            update queriedKAV;
        }

        Test.startTest();
        BatchManagement bm = new BatchManagement();
        Database.executeBatch(bam);
        Test.stopTest();
    }

Inside the BatchManagement class, there is KbManagement.PublishingService.deleteDraftArticle(kav.KnowledgeArticleId);. Unfortunately, when this line is executed I am getting You can't perform this action. Be sure the action is valid for the current state of the article, and that you have permission to perform it. Which is strange because I am running as Admin and I have the UserPermissionsKnowledgeUser set to true.

I tried moving the below part

Test.startTest();
BatchManagement bm = new BatchManagement();
Database.executeBatch(bam);
Test.stopTest();

to inside of the System.runAs(u2) like this:

System.runAs(u2) {
    update queriedKAV;
    Test.startTest();
    BatchManagement bm = new BatchManagement();
    Database.executeBatch(bam);
    Test.stopTest();
}

Still it doesn't work. Any suggestions?