Chris is an engineer and not a marketing major. I don't think he begins with how to best market his products which isn't to say he doesn't think about it. I agree that some sort of better comparison data would help to plop down the bucks for this kit, but the design and testing are at least transparent which is more than I can say with other companies who use the term "testing."
Personally I would like to see a standard 3076 thrown on to compare to the other efi logic dyno runs. It would take out the effect of the gtx wheels on the spool and curve and at least allow some correlation between the reduced header volume.
Chris these guys do have a point. The kit won't be cheap, so a bit more effort on the comparison data can help with skepticism. If the pricing were a lot lower I don't think the skepticism would be as great.