It’s not worthy of the Pro Range title, so it doesn’t matter. However that is not how many of the actual Pro Range add-ons work.
It is a nice pack. It is just a normal DLC route. I have finished it. There were a couple of logistic scenarios and a couple of scenarios requiring dynamic braking going down the Saluda grade. https://sites.google.com/view/trainsimulatorcontent/na-routes/saluda-grade