You say the BMT chart is "enough", and yet at the same time it's completely made up, and if it really is enough, then it has to be because it's not about facts and information, it's about confidence in your purchase decision. Making people feel like they made the right choice. A BMT chart it not much different from saying "if you like genre X, you'll like pickup Y" , but in the end there are no facts and information being exchanged, just a sense of assurance and security in knowing you bought something that's good.
I completely disagree that it's enough, though. The frequency with which people swap out pickups, and all the contradictory opinions that fly around about whether an SH-2 Jazz is "modern" or "vintage", is wildly wasteful and inefficient, and the only reason we put up with it is because we kind of enjoy the trial and error process, even if we waste a grand on pickup swaps over the course of several years. Just because we do, doesn't mean we should necessarily have to, though. I know some people out there swap speakers out of their cabs the way people on this forum swap pickups, and I have no appetite for going though five sets of speakers.