Frequency response + or - 1 dB ??

Thanks to all for input.
My question is simple. 
Why is it obviously technically difficult for speaker designers to provide precisely level frequency response. @kenjit. I accept some listeners want to adjust the sound for different recordings. Old fashioned tone controls and modern equalizers provide that. 

Agreed, other aspects are also vital to good reproduction of music and sound. Seems there are questions about why frequency response accuracy is important.
Very simple. The aim of loudspeakers is to accurately reproduce sound (as recorded with the best of modern technology). For that, accurate frequency response must be a goal. Or am I mistaken?

Can a single driver of any material provide flat frequency response within its operating range?

I appreciate the comments explaining why the posters feel flat frequency response is not important.  I’m not arguing. 
I’m asking why speakers generally aren’t able to be manufactured with level frequency response. Still hoping for some information. 

FWIW  Revel Salon specify +/- 1/2 dB from about 29 to 18,000. They are also the longest lasting reference level speaker that has remained unchanged. I find that interesting when most manufacturers seem to make changes simply to make a change. I think the Salon’s uniquely sculpted face also leaves little room for improvement in dispersion.  Also interesting as only B&W seem to also have a significant design to eliminate dispersion 

Why is it hard to get flat frequency response, on axis, in an anechoic chamber? What is it about the drivers that needs “technical” improvement? We’ve put men on the moon, extreme precision required; what’s the big deal with loudspeakers. With the amounts charged for the “spensive” models — I expect better; more accuracy. 

Sorry to have to disagree Atmasphere. I was hoping it might be folks with your technical acumen that might provide real insight | 

“Duke” ?
Saying reproducing the frequencies of music - any less accurately than “Spot On” -is simply to accept the failure of today’s technology. That’s   been a common problem with mankind in general and is why we laid breakthroughs that eventually move us forward to a new paradigm. 
Its interesting to me that responses to this thread have virtually all been to say why frequency response is unimportant. 
“Groupthinking acceptance of the status quo”?
i suggest that in a very few years; when dead flat frequency response is common; the invaluable contribution it makes to reproducing sound will be considered a “no brainer”. 
Just my 2 cents worth. 

I believe this thread is dead. No one has responded with any indication they know why it’s not practicable to make speakers with “flat” frequency response - today. 
I accept this fact and will seek answers elsewhere. I appreciate the information that has been provided :)