Part of Bloomberg's business model is news-as-advertising; "This company developed this new therapy, find out more". I think that's what the editor is referring to as "enterprise stories".
He's basically saying - listen, when a company is paying for a news article, don't let them stuff the piece or bury the lede. Get their key message down and move on, our readers skim the article for the beef anyways so you're just wasting their time by adding filler.