I guess the effort you need to put in to have an authentic rally experience is waaaay more than most other motorsports, let alone other sports. That gamer or esports fan is going to have to go way out of their comfort zone to visit the Welsh forests for example.
That's also the reason teams often struggle to get sponsors. It's pretty difficult to get any kind of in-event VIP experience compared to hosting clients at a race circuit or even WRX track.