That's why it needs to be a Forum Participant designed and run test, people with nothing on the line. I have a feeling with test's run by AH and others with friendly ties to manufacturer's (website advertiser's) the products will never be given an honest shakedown. It will be like modern children's sports where there is no loser, everyone wins, hurray!!.
Then I imagine the manufacturer's won't be too keen either. They already have all this great free advertising and marketing from forum users based on mostly subjective feelings and hearing. Having them actually be tested in a controlled environment head-to-head may actually show them to not be as good as enthusiastic owner's articulate in their grand stories of bass.
In regards to the complaints AH heard from the manufacturer's, I don't see how including DIY and SPL drag-races would harm these companies as long as all the data was presented clearly including all costs including materials and finishing for the DIY. This way a reasonable individual can see that while XY speaker was the best, it cost $X,000, and took 50 man/hours. The manufacturers only need to sweat if they think/know some low-cost alternative is going to meet/beat their $$$ sub.
In the end for most it comes down to the subwoofer with the highest low distortion dB/ $. I hope some of you hear can come up with something, with all the recent new offerings and upgrades, this segment definitely needs a solid statistical review base.