A few things, here ^...
Would people (located on the earth) necessarily know that Satan was present in such a meeting? (Not necessarily, IMO.)
I find
repeatedly in the entire context the phrase "H1961 H3117" which I don't find ever being used elsewhere in Scripture to be referring to a Heavenly-located setting/context.
And if we can find even just ONE other passage that uses "H3320 H5921" of humans (located on the earth, doing this) then we can consider this a legit view of this passage as well (Job 1:7 & 2:1 [2x]). And I find that "H3320 H5921" IS indeed used regarding "humans, located on the earth," thus rendering this very possible (and I believe the more likely explanation [similarly] of Job 1 & 2). And that is in Psalm 2:2 (
https://biblehub.com/text/psalms/2-2.htm And here, the English words used are "set themselves" and "against"... which doesn't necessarily have to be the identical "intent" in the Job verses... I'm just showing that it is possible for "humans, located on the earth" to do this... the context of Job 1 & 2's numerous mentions of various "H1961 H3117" calls for this [earthly location], as I see it).