You may have arrived at this view due to lack of visibility on what WWV does.
WWV also provides: - stable reference frequencies for maritime and aviation radio and also for terrestrial radio tuning - space weather alerting for radio system operators - GPS system status updates for maritime and aviation - High accuracy intervals and UT1 corrections (which used in conjunction with GPS for highly accurate position measurements)
Despite sounding like some legacy thing, this is a highly active system used by a lot of folks. I built a stratum 1 NTP system for power grid a few years ago using EndRun high accuracy appliances and we used GPS and WWV as the sources.