The scripture is referring to ALL eras, as exchanging good for evil is an inherent trait of the sinful and fallen nature of man. Everyone who is outside of Christ considers the thigns of God to be ‘evil’, and their own sinful state as ‘good’. It’s a perpetual condition of the unregenerate.
It’s not modern prophecy meant for us to decipher like a puzzle, nor is there any great mystery to it - it’s a straightforward warning that’s been applicable to every age since Adam’s fall.
i MOSTLY agree.
I also believe that many verses of the Bible were designed to be applicable through the ages
AND
particularly in the END TIMES . . . e. g.
Yea though I walk through the valley of the shadow of death . . .
prepare a table before me in the presence of my enemies . . .
that last line I think will be fulfilled in the END TIMES as never before.