The spectrum of "seriousness" and "importance" is not well-defined, and different media organizations make different tradeoffs. "News you can use", a common marketing phrase highlighting a specific genre of journalism, spans the gray area.
Tips, advice and hobby-based news fall at the infotainment end of this genre. Warnings about imminent natural disasters or acute domestic security threats are considered more serious, and other media programming (even non-news channels) is usually interrupted to announce these events as breaking news. The importance of "news you can use" on a personal level is rather subjective.