A bit of an aside, but that's how Scanner Jammers work - they subtract from the effective range of the opponent's Long Range Scanner. But you can't do that for a component though.
About your 2nd suggestion, that's sort of how it works now except at really high tech levels in stock. Basic Sensors do long range but low sight, while Tachyon does shorter range and high sight. I made this more apparent with the Balance Mod as I continue to plug it as much as possible these days.
