There are other Sutta related to this which talk about consciousness unestablished, eg:
Suppose, bhikkhus, there was a house or a hall with a peaked roof, with windows on the northern, southern, and eastern sides. When the sun rises and a beam of light enters through a window, where would it become established?”
“On the western wall, venerable sir.”
“If there were no western wall, where would it become established?”
“On the earth, venerable sir.”
“If there were no earth, where would it become established?”
“On the water, venerable sir.”
“If there were no water, where would it become established?”
“It would not become established anywhere, venerable sir.”
“So too, bhikkhus, if there is no lust for the nutriment edible food … for the nutriment contact … for the nutriment mental volition … for the nutriment consciousness … consciousness does not become established there and come to growth. Where consciousness does not become established and come to growth … … I say that is without sorrow, anguish, and despair.” https://suttacentral.net/sn12.64/en/bodhi
Another here:
"If a monk abandons passion for the property of consciousness, then owing to the abandonment of passion, the support is cut off, and there is no base for consciousness. Consciousness, thus unestablished, not proliferating, not performing any function, is released. https://www.accesstoinsight.org/tipitaka/sn/sn22/sn22.055.than.html
Another yet:
That, bhikkhus, is Mara the Evil One searching for the consciousness of the clansman Vakkali, wondering: ‘Where now has the consciousness of the clansman Vakkali been established?’ However, bhikkhus, with consciousness unestablished, the clansman Vakkali has attained final Nibbāna. https://suttacentral.net/sn22.87/en/bodhi
Now there are several ways of translating vinnanam anidassana which are not literal but i prefer the literal one.
I think that this is more or less the proper sutta analysis and there could be no reasonable doubt about it.