I blame CNN for much of the state of news today. TV news has always been poor, but before CNN proved otherwise, news was not something that was considered a profit-maker. Once CNN showed it can make money, then the profit maximalization began in earnest, and with that came the descent into news-as-entertainment.
That started well before the gulf war.
As an aside, 99% invisible had a pretty good podcast on how radio (which delivers news to more Americans -and is trusted more- than TV) content has changed over the years. https://99percentinvisible.org/episode/the-divided-dial/
The change has been systemic, and that change shaped CNN more than the other way around.
Which has an effect on the political process.
It's not that I want the ads so much as I want a short break from consuming the content.
And that was pretty much it.
I don't know if I'd call newspapers long form, as they certainly have lots of short articles, but I'd say they regularly have "longer form" than Frontline.
There are not enough relevant things going on in the world to merit a 24-hour news cycle, so the media has to make things up to fill the gaps. But once they make things up, they're pathologically incapable of distinguishing their own made-up crap from actual relevant news items.
So we spend the day glued to our phones flooded in crap.
This is how the news was for me as a 90s kid who only had over the air channels for TV. 6:00-6:30PM was local news, 6:30-7:00PM was World News Tonight with Peter Jennings. Outside of that folks weren't particularly concerned with what was happening beyond their immediate bubble.