Well, I'm guessing this whole conversation them hinges on what we mean by "informed."

I'm doubting that a person could be well-informed by what's going on recently with the Trump adminstration, or BLM protests, or recent Covid news, from reading books alone.

I'm guessing that people who don't read the news might respond that the latest scandal from the government isn't important, and why they stopped reading the news.

At which point, "informed" might simply mean "the things I know about, because I think they're important."