AD&D 2e FR Lore Folks - WTF?

Ok, so for all of you old AD&D2e people out there who have read the original time of troubles series of books:

Someone explain. Not trying to shit on BG3 as it's a great game and a great story, but unless I'm missing something it CANNOT be cannon FR lore right?

At the end of the Time of Troubles, when Midnight, Cyric and Adon (Kelemvore is dead - stuck in Cyric's Sword) return the Tablets of Fate to Ao, he regenerates all the dead gods except Mystra - who attempted to circumvent Ao's orders and thus pissed him off, and Myrkul and Bane because they caused the whole SNAFU to begin with.

I forget why he abolishes Bhaal as well. Bhaal isn't reformed by Ao - that much I'm pretty sure I remember - I just forget why that is. Bhaal isn't part of the Tablets theft, so isn't in "pissed off Ao" camp like Mystra, Myrkul and Bane were...I forget what the reason Bhaal isn't reformed is.

Regardless, it's BECAUSE there is no more Bhaal, Myrkul and Bane that Cyric is given the God of Murder, Death and Strife title and because Mystra was proofed Midnight is given Mystra's position. If I remember my read throughs correctly the books state something along the lines that AO Scattered the remains of Bane and Myrkul across the cosmos so that they could never be reformed.

I realize "the dead three" have become one of the ultimate "bad guys" of the FR writings, but ... two of them don't exist anymore according to Cannon and the entire story of BG1 and BG2 is the attempt by Bhaal to re-form through mass death by his SPAWN because Bhaal himself can't have this hand on the tiller...he doesn't exist.

??? - What am I forgetting from 20 years of not having read those books?