I get you. They'll probably get around to it. This was essentially a heads up to people that are ready to purchase now (since we emailed them directly about it). They have no need to "pitch" their product. Hell, I modded an older version to fit mine.
As far as performance, the factory boxes are actually cold air and efficient. The addition of a high flow filter and replacing the factory tube that eliminates all the sound diffusers is were the performance gains are realized. I actually think the factory setup in the 2014 is very efficient. At the end of the day, its still an LS engine in essentially the same configuration so I believe the previous test results are still relevant.
Also, its not that the Airaid setup is more than performant than the other brands, it's that it's within a narrow competitive range and far less expensive since you're not replacing the factory box.