Comment by bluGill

Again, all linemen are taught to short the wires or they are alive. All grids have regular places where two different lines meet and there is a switch at those points where in the worst case is they can cut the down line close a switch that normally is open and they can back feed a line from a different one and get power to people who are on each side of the break and then they can come back later to fix the break. These switches are miles apart, which means that you cannot be sure while you're working on the line someone else didn't go to that switch and change it.

Also, people have been back peeking the grid from their home generators for decades by now. Solar and inverters are a different variation of that attack, but it is nothing new. Any utility will have procedures because they can't guarantee that's not happening and we learned years ago.

I'm not saying it never happens, only that correct procedure already makes it not an issue