What was the reason they gave for shooting it down, it makes sense to me and I won't be using only 1 speaker or 2 most likely 5 or 7.
Shooting down what, the method of stating specs? AFAIK, the FTC removed the requirement that had been in place since '73, when equipment ratings were a free-for-all. They used IPP (Instantaneous Peak-to-Peak), one channel driven, RMS and several other ratings, usually serving only to confuse consumers. Why they couldn't just permanently adopt the same standards as broadcast and audio engineers, I don't know. Must be due to the numbers being larger- we all know more/bigger is better, right? More power, more lights, more specs, etc. Car audio and most other gear was explicitly excluded from the FTC mandate and they had their own free-for-all. Used to be that an amp might be rated in 'Sony Watts', 500 Watts JBF (Just Before Fire) or 500 Watts WLS (When Lightning Strikes). Bigger numbers sell more equipment.
When the Japanese audio manufacturers decided to compete on power ratings, they filled the magazines with articles and interviews that said things that we all know now to be crap. On a certain level, some of it was correct but in real world situations, most people just didn't give a rat's azz. How many people really care about slew rate? For that matter, how many know what it is? Sansui though it was important enough to make a lot of noise about it in their spec sheets and reviews. True to form, Audio and Stereo Review agreed. How many people actually care about power output, other than for bragging rights? How many actually know the SPL difference between 70W and 100W, but bought 100W because it was
more. People bought big, heavy receivers that really didn't sound all that good because they were led to believe that they needed 270W/ch and a tuner, in one box. The Pioneer SX-1980 weighs 98 pounds and it doesn't fit in many cabinets I can think of, nor will most cabinets support one. Want to put one in a standard 19" rack? Sorry. Not gonna happen.
Also, using 1KHz as the test tone for an amp's power rating is absolutely freakin' USELESS unless the power output for the rest of the bandwidth is equal to that. We're not playing AM radio here, this is full-range audio.