Hah... It is very easy in IT... If you have a bug, let's just call it feature. Super!
I remind you - it is bellow F3, the rolloff is EXPECTED there (don't you have it with your speakers? so, lets boost everything below too!), and this is the very basic rule of the acoustics - not to boost below F3.
It is! As long as the speaker it is not specifically designed to produce bass bellow natural F3 with a boost (and this applies only to specifically designed subwoofers and amps are integrated then into them in this case, so they are designed together), the EQ should not assume speaker is capable to play any anount of boost below F3, not to mention that this is a hard and unneeded work for an amp too while those frequencies are known to be passed to subwoofer anyway. And I am really not sure if there is no clipping somewhere in the processing chain caused by this boost, because how it sounds often suggests so...
PS. This is the most technically absurd argument I've ever heard of that can only be said by some company management trying to cover its back when something went wrong.