[PetroniusMaximus]

***May I ask what theological developments? ***

Rather than get into a long list, can we focus on one critical thing?

...the priesthood failing to tell you that you must be, (and how to be) born again in order to enter the kingdom.

[Desdemona]

...the priesthood failing to tell you that you must be, (and how to be) born again in order to enter the kingdom.

As this is not Catholic theology, how is it a failing? If you are talking about the docility of acceptence of God's will, now that's something different as is Birth in Christ in Baptism.