Wow a GREAT article Gene well done. That also goes beyond just the crossover sales & theory. But also discusses the impedance load the room projects back into the "amp/speaker synergy lore" part of the chain. Something I have often argued about elsewhere (AA). Alswell as the importance of speaker placements.
Hope you can do more of these types of articles to correct the misasumptions that a lot of audiophiles think is (law), but is in reality only "lore".