I'm all for EVs showing their strengths (and own several) but tethering to a mobile charging trailer that virtually nobody has access to kind of puts a huge asterisk on the entire thing.
I'd love to see an EV-only rally that allows competitors to go faster or slower to optimize charge (faster = higher risk, more discharge) and, in that, force manufacturers and teams to actually innovate on the vehicle to make up for it. Put huge batteries and make it too heavy? It'll struggle in the mud and will likely blow tires. The function of motorsport (and ally, specifically) is to act as a proving ground for vehicles at the extreme end.