Resound Forza frequency specs

In one of its online brochures, Resound lists the frequency specs of the Forza to go out to something like 7,200 Hz. Some commentators here have stated that some HAs go out to 8,000 and even 10,000 Hz. I go to many live classical music concerts and wonder about this. I realize that other specs such as distortion figures are important too. Further I realize that the major way to judge HAs is in the listening. Yet I wonder about these frequency figures. Are they lower than usual? Another comment. Isn’t it unusual for a manufacturer to publish such specs?