Aaah ... no. There's nothing in the Bahai teachings to say you have to be an enrolled member to be saved. That would be too stupid for Bahai, since all the Bahais in Iran and China and most of the Middle East today are not enrolled. I am not enrolled either. Enrollment is just an administrative status, and as the secretariat wrote on behalf of the House of Justice recently "Recognition of Baha’u’llah is a matter between the individual and God. While it may not be possible for some individuals to enroll as Baha’is, they can, if they choose, continue their study of the Teachings and strive to put them into practice in their lives." (June 5, 2018 to an individual) An Israeli can be a Bahai, but cannot enroll in an Israel Bahai community - there is no organised national community to enroll in. Also not in China and a number of Islamic countries.
The first paragraph of the Aqdas is about the religious value of "works" (the ones the Aqdas goes on to prescribe, such as prayer, fasting, pilgrimmage, inheritance, marriage, divorce, tithes (huququllah) and so forth. It says that "good works" (such as these) do not have religious merit unless they are based on "recognition" (`erfaan). `Erfaan is the consciousness born of a mystic encounter with the divine, it is sometimes translated as gnostic knowing.
The context is that Bahais from Islamic backgrounds have been pestering Baha'u'llah for some years for a book of laws they can follow, to replace the Islamic Shariah code and the Bab's Bayanic law. Eventually Baha'u'llah agrees, and compiles and composes the Aqdas (some of its contents already existed in other works), but he begins by saying (my paraphrase) you can pray and fast all you like, but if you don't have `erfaan in your heart it's not worth a bean, as a way of pleasing the Beloved.
Christianity has the same concept, in the form of the much-disputed relationship between faith and works. The Bahai approach is like the Catholic one: first faith, then good works. In Islam this is the doctrine of intention/neyyat, which says that each good work (prayer, but also charity) has religious value only if it is preceded by the correct intention. One has to form the intention, I am going to pray the salat as Muhammad and Islam has taught me, and then begin the prayer, in order to have obeyed the law of praying. (the salat is the 5-times per day obligatory prayer).