it was still time of text adventures.
The shit that you hear only on Codex 2022.
Might and Magic 2, Amiga version.
DOS version was very pretty too.
And if you meant that text adventures (if this should meant something to RPGs) were predominant, then now. Most new adventure games in the times of M&M and M&M2 were graphical.
MM got released in '86, MM2 in '88 (prettier Amiga port was released in '90).
Infocom was still publishing their adventures in second half of 80s, and they were not considered relic of the past.
https://en.wikipedia.org/wiki/Infocom#Interactive_fiction_2
In '86, 8bit home computers and consoles were still predominant, Amiga was still expensive and not accessible to most of people.
There was a lot of graphical adventures, but they were mostly drawing static screens to preserve memory, like Hobbit or Erik the Viking.
Maniac Mansion (1987) and Zack McCracken (1988) were progenitors of point'n' click adventures, removing the need for complicated input parsers.
I think that VGA standard was published then, but the games that used it were made some time later.
Amiga 500 was introduced in 1987, but it wouldn't sale well until 1989.
MM2 is from that age, and it can be seen in better graphics and even animations.
But still, first two MMs were published in time when playing text advenutres was not niche, computer magazines were full of maps and walkthroughs for text adventures.