It would be sad for the sport TLS (to lose!) the Silverstone event. The world's busiest airport for the day. As someone who has actually raced at Silverstone, it is special.
As for WRC, yes it is great. As someone who gets to drive a real Subaru WRX STi occasionally at over 150 mph chasing aircraft down runways then bring on this as a sport. The racing restarts from the toll booths on the Dartford Crossing are nothing compared with this fun.
It does rather wear the brakes and tyres in an afternoon.