The row 'Multiple clients can have a reference to the same bean' is about the shared bean instance. It says that stateless and stateful session bean instances can't be shared, an entity bean instance can be shared. In the case of message-driven beans the question is irrelevant since they don't have clients.
Back to the question:
EJBObject is shared; but the bean instance is not. Does the above sentence apply to all kinds of beans (bmp, cmp, stateless session bean, and stateful session bean)?
So, Obviously it's not correct.
William Butler Yeats: All life is a preparation for something that probably will never happen. Unless you make it happen.