I have this wonderful fantasy where Larry DiMarzio, Bill Lawrence, Greg Kinman, Jason Lollar, Seymour Duncan, Lindy Fralin and a few other experts are led into a room with a stackful of different Strats and a guy in a gorilla suit (with bare hands though) picks up each Strat and plays Stairway to Smoke on the Sweet Child's Tush - and it's each maker's job to identify their own pickups!
Like I said, just a fantasy. As long as these guys are basically assured that you're going to end up with a shoebox full of a sprinkling of pickups from all of them, who could care less? The concept that you could hook up a frequency analyzer, feed a consistent magnetic signal into a group of test pickups, measure the output across the audible range and publish the results - why would a guitar magazine bother? Especially when they can get each and every pickup maker to fight for more ad space in their magazines? If there's any difference at all between this and the 300 or so most popular different religions (yep, yours too) I wanna know.