I'm sticking with my view that this was at a time when talk hosts weren't primarily political. What really killed MJ was that his style of informational talk became dull when compared to aggressive hot talkers. Tom Leykis, who also wasn't primarily political, was another host who put people like MJ and Larry King out to pasture. They were loud, fast talking, in your face, with a rock attitude. Now even Leykis can't get hired because he doesn't preach to the converted.
For those who never heard Michael, there are a couple of videos archived because they were C-SPAN simulcasts. This one is from the morning after the 1988 election, where Bush beat Dukakis:
https://www.c-span.org/video/?5029-1/michael-jackson-radio-show
30 years later, I'd like to have the option of a Michael Jackson today. But he's 84, and he's not coming back.