Surely you know that the teachings were in an oral tradition and that the repetition of items that can be unified in practice would be totally redundant. There was a great video by ex-ven aggadhammagavesaka. Have you seen this? Please see these two videos here and report back
Surely you know the structure of the mula and commentaries.
Surely you know that when the first five disciples were on their way to get enlightened (well, the remaining 4), that the Buddha was there teaching while the other two went for alms, yet there is no account of that teaching.
The abhidhamma is surely a practiced based methodology.
I’m sure you understand all of this since you know pali and the way the whole cst is structured. It makes total sense. I think you are asking questions you already know the answer to.