'The farmer', probably had to cut and haul today because he can't control nature. When the grass is ready it's ready, not before, not afterwards.
And he pays Manx road tax presumably, some people think everything normal should stop during Gods only TT.
The trailer I followed did not appear to have a registration plate on it so have no idea, I actually agree that normal life should go on but since the mountain is one way and seems to be closed more than open it funnels a heck of a lot more traffic onto the Ramsey coast road which imo has much more potential for accidents than the mountain.