A law about staying back when a police officer asks doesn’t seem like the most terrible rights violation. It’s like virtual yellow police tape. One way to look at this is that it clarifies how far you need to stand back. 25 feet is slightly far, maybe it should be 15 feet instead?
That's just unchecked power waiting to be abused and there's simply no reason cops have given the public to believe they won't abuse power frequently, if given the opportunity.