This change happened back when Governor Walker was in office. The Railroads convinced someone that this was a safety issue when in fact there is essentially no history of anyone ever getting hurt crossing a track other than at a road crossing.
Conservation groups and the Conservation Congress have been trying to get it changed ever since with no success. The Legislature and the Governor(s) don’t seem to care that tens of thousands of acres of public land has been cut off from use. There are even private landowners who own land on both sides of a RR ROW that can’t legally cross it.
Ridiculous.