Great. To be sure…i did not mean that you said something that he would disagree with. I shared it to say that he also agreed with what you said.
In Uncommen Wisdom he said:
"Mostly, the defilements are on top. They’re the boss. It is only when we begin to see things as they really are that the Dhamma starts getting stronger. As the Dhamma gains strength, the defilements
have less chance to interfere. By persisting diligently in the practice of Dhamma—and it’s very hard work—one can eventually break through to a natural state of total freedom. The Buddha called it “Nibbāna.” Nibbāna is what we all really should be. It’s there within us all the time, but we just don’t recognize it. If we can clear away all traces of ignorance and defilements, what’s left will be Nibbāna"
(page 182)
He also says in the same book:
“Nothing we experience is fixed and immutable; all is flowing and changing. Nibbāna is the one permanent reality that does not change”. (page 240)
He also said
"Also, it isn’t that we destroy the self through meditation, but that we come to understand that the self is an illusion. No destruction of self takes place because there’s nothing to destroy. It’s rather like trying
*to destroy a shadow. Seeing through the illusion, on the other hand, reveals the mind’s true nature. Fundamentally, the element of Nibbāna is there within us already. It must be there; if it wasn’t there already we couldn’t possibly reach it, because Nibbāna is not subject to arising. The Buddha stated very clearly that whatever arises must cease, which means that Nibbāna must be there within us all the time. Otherwise, it would have to arise at some point in time, which is incompatible with its nature of being unchanging. This is the true nature of Dhamma, the Dhamma in the heart" (page 242/243)
I have seen this is the message of many many buddhist teachers. To think about Nibbana as something that is not there yet, is wrong. To think about it as something that will arise in the future or is a constructed result of our effort is wrong. That is what many teachers share.
And i believe this is consistent with EBT too. Nibbana is not like some constructed state, a house, that will also decay and cease and is still liable to arise, change and cease.
The asankhata element is never explained this way.