These rights take concrete form when we consider the different types of groups that we may join. If a group seeks official status, it has several options. For example, it can ask the bishop to recognize it, or it can take a further step by requesting that the bishop establish it as a recommended group. With every increase in status that the group seeks, it submits itself to additional control by the bishop. However, a group need not seek any official recognition by the bishop.
Different groups have different purposes.
The key thing to remember is that different structures fit different groups. If Our Lord saw fit to allow persons acting independently of the Apostles to do His work, then we should not be surprised that canon law allows us to form and to join religious groups that are independent of our bishops. Our rights to associate and assemble are indeed fundamental, but they are not unlimited. We can teach and discuss Catholic doctrine, but we cannot claim to speak for the Church. Although this restricts the naming of the group, it does not prevent the group from identifying its purpose.