"Rods from God" was a concept dreamed up by Jerry Pournelle, who once worked at the Boeing Company, but later became a noted science fiction writer. And that is as far as it went. It really didn't make much sense. The central premise (that its orbital kinetic energy would be converted to thermal energy upon impact) was never validated. Subsequent use of tungsten projectiles as anti-tank munitions showed only that the tungsten penetrated and did not convert into a thermal explosion. To scale it up would only create a tungsten rod that would penetrate into the Earth for maybe some few kilometers. Not nice to be around, but nothing like the mythological hype.

Operationally, it would have no advantages over either a direct missile shot or a fractional orbital bombardment system approach. But the development of such a device would run afoul of existing outer space treaties and certainly be a focus of Soviet / Russian interest. A satellite version would be effective only if and when the satellite was in position to direct it on a strike trajectory.

And the rod would require de-orbit propulsion (negating some of the orbital kinetic energy) and guidance to target. Using what sensors? At this point, you are not much better than a conventional re-entry vehicle. And what would be its terminal accuracy? Nuclear weapons get over this problem by having a large enough blast radius. (Old targeting saying: "When in doubt, add more yield.") But, hey---I only designed space weapons for a living.

As I understand it, past havoc was caused inside the Iranian nuclear program by cyber-hacking sabotage. This could be the same. Time to wait and see.