Hi , an attempt to an answer,
This goodness is a ground and not a belief. Goodness is described differently in EBT in words like:
-“It’s hard to see what they call the ‘uninclined’, for the truth is not easy to see. For one who has penetrated craving, who knows and sees, there is nothing.” (Ud8.2)
The uninclined is a synonym for goodness.
SN45.161: … "What Noble Eightfold Path? Here, bhikkhus, a bhikkhu develops right view … right concentration, which has the Deathless as its ground, the Deathless as its destination, the
Deathless as its final goal.". . .
The Noble Path has the Deathless as it ground. The noble path does not have inclinations/habits/desires/ passions/tendencies/urge as its ground but the uninclined.
Another way the sutta state this is:
"And how, bhikkhus, does a bhikkhu develop and cultivate the Noble Eightfold Path so that he slants, slopes, and inclines towards Nibbana? Here, bhikkhus, a bhikkhu develops right view, which is based upon seclusion, dispassion, and cessation, maturing in release. … He develops right concentration, etc (SN45.91)
I believe that we are never really seperated from dispassion, seclusion, cessation because that is, as it were, the interior, the sphere we live in. But like a fish in water also stops noticing the water, we have stopped noticing the uninclined, dispassion, seclusion, cessation, the stilling of all formations as the space we live in.
Maybe someone, a teachers, must make us aware of all this, to see it. Someone must awaken us.
The most strange thing seems to be that we are much more familiar with the deathless, with the stilling of all formations, with dispassion, with the uninclined, than with defilements. But like everything that is so extreme familiar it does not get noticed anymore( such also with neutral feelings).
The things that are most common/familiar to us escape our attention. The most familiar to us is the uninclined, emptiness, stilling, peace, the truth, that what we do not see arising, ceasing and changing in the meantime.
I do not say we know it completely but we are not unfamiliar with the uninclined, the opposite.
I can imagine that there can be a time that no one awakenes us anymore, but i do not believe there can be a time that Truth is absent or that we can ever be separated from Truth, from Goodness, from the uninclined.
I assume also after the total cessation of the khandha’s.