Horn based loudspeakers why the controversy?

I came into a celebrity's JBL Paragon 25 years ago along with a vintage Mc275 and Mc240. Similarly, 13 years ago I was given 2 Mc2105s, and a Mr77.  I added JBL 2405 slot tweeters (alnico) to the Paragon, and use a MEN220 Room Perfect with its electronic crossovers, biamping with the Mc275 - top, and Mc2105 - bottom (made a huge difference).  The most recent addition is a Bryston CP 26 Preamp (great improvement).  Most of my friends are musicians like me, and none fail to be blown away.  However, when live music plays a prominent role in your life, no speaker does everything, and one can enjoy many different brands and models over the years for their own special characteristics.

Kosst BSC made simple (and why it may be important to you)  http://www.salksound.com/wp/?p=42

Does the "cold hard evidence of measurement" actually have anything to do with personal taste in musical tone? Measurements and personal comprehension anomalies aren't completely mutually exclusive, but aren't matching either. If horn loaded speakers are made well, the phase plugs and throat shape, etc., will provide efficiency and projection and that's about it as far as generalizations go since they're not otherwise the same thing (different designs simply sound different)…many modern speakers have moderate "horn loading" recessions around tweeters to make them more efficient, and although generally aren't considered horns per se, certainly do the same thing. Once them pesky high frequencies get released who knows where they go? As long as they get to my earballs somehow I'm fine.