I think it is the other way around. The stories you are implying are paid are from press releases, though they aren't paid to run them. "Enterprise" are stories

I think it is the other way around. The stories you are implying are paid are from press releases, though they aren't paid to run them. "Enterprise" are stories that don't come from PR, they are stories where enterprising journalists have researched and developed a story. That is why he says: > Before you embark on a piece of enterprise, ask yourself whether it’s really going to be worth the investment, And if an idea doesn’t turn out as envisaged, be prepared to spike it and move on. A week or two spend on source-building, without any story published, is often a much more valuable use of our reporters’ time. https://en.wikipedia.org/wiki/Enterprise_journalism https://en.wikipedia.org/wiki/Enterprise_journalism