Problem with GPS is that it’s being jammed over in Europe, and I don’t doubt that the same will happen here before long:There was an attempt to shut the NIST stations down years ago that failed. But today, every thing you list is better done with an under $200 GPSDO. But legacy equipment still needs WWVB on 60 kHz. If WWV/WWVH were converted to being used for propagation forecasting, they might have a more useful purpose.

Russia accused of jamming GPS navigation
Experts say Russia has been jamming GPS signals in certain European regions, leading to disruption for civilian aircraft.

It‘s always good to have an alternate in case the primary becomes unreliable.
And WWV does do propagation reports, at 18 minutes past the hour.