Good to see you posting again Sobhana!
In this sutta the passages mentioning daratha are talking about the disturbances (of mind)- daratha- at various levels of increasing subtlety including even higher jhanas.
And the last section of the sutta you cite has this (Bhikkhu Bodhi translation):
- "He understands thus: 'Whatever disturbances there might
be dependent on the taint of sensual desire, those are not present here; whatever disturbances there might be dependent on
the taint of being, those are not present here; whatever disturbances there might be dependent on the taint of ignorance,
those are not present here.there is present only this amount of
disturbance, namely, that connected with the six bases that are
> dependent on this body and conditioned by life.
He understands: ‘This field of perception is void of the taint of sensual
desire; this field of perception is void of the taint of being; this
field of perception is void of the taint of ignorance. There is present only this non-voidness, namely, that connected with the six
bases that are dependent on this body and conditioned by life.’
Thus he regards it as void of what is not there, but as to what
remains there he understands that which is present thus: ‘This is
present.’ Thus, Ananda, this is his genuine, [109] undistorted,
pure descent into voidness, supreme and unsurpassed.114
So this final section is talking about the arahat.
The type of disturbance here is not dukkhadukkha(ta) but still there is sankhara dukkata until khandha parinibbana.
The Nettippakaraṇa :
*Herein, the world is, at one time or another, somewhat free from to the unsatisfactoriness of pain (dukkhadukkhatā) as well as the unsatisfactoriness of change (vipariṇāmadukkhatā). Why is that? Because there are those in the world who have little sickness and are long-lived. But only the nibbāna component with no fuel remaining (anupādisesa nibbānadhātu) liberates from the unsatisfactoriness of fabrications (saṅkhāradukkhatā)
see this thread for a related discussion.
If all conditioned phenomena are dukkha, how can an arahant no longer have dukkha mentally? - General Theravada topics - Classical Theravāda (classicaltheravada.org)