Yeah, you tell him, man!
In the end, the buyer needs to open up his mind and ears and buy the speakers that sound the best regardless of specs.
I hate the fact that Def Tech specifies the ridiculous "overall" frequency response, instead of the traditional +/-3dB response.
But if I just let that bother me and cloud my senses, I would have missed out on some awesome sounding speakers (to me).
I've listened to other brands including B&W 800D, Revel, Krell, and some other expensive speakers.
The Def Techs just fits my senses most. But other people prefer other brands, which is just fine.
But don't just pre-judge any speaker based on some specs. Not all speakers will sound great to any one person. We are all different.