I made no mention of a measured and/or targeted response that is "messed up." I'm simply saying that Magnepan is probably designing to an objective that neither you or I understand. (That shouldn't be a difficult premise to grasp.)
Your assumption is that a shift in tonal balance to a "higher level of accuracy" would sound better? That's speculative and assumes that you know what a "higher level of accuracy" is relative to the folks at Magnepan designing these particular speakers. "Accuracy" is more than objective in the crazy world of speaker design. You should well know that. 
My comment regarding messed up refers to a response curve that is not accurate.
In a way you are right about them possibly having a design objective that we don't understand as I find it hard to understand why a more accurate response wouldn't be desired especially since adjusting the response to produce a more accurate output level is so easy.
And are you suggesting or assuming for some reason that a shift in tonal balance away from accurate would sound better?
And in terms of accuracy, that is pretty simple really. Greater deviations from the input signal is less accurate. Less deviation from the input signal is more accurate. One doesn't have to speculate to understand that.
Regards switching the configuration: Again, you've created an argument against something that I didn't say. I said nothing about bi-wiring or tri-wiring with some sort of passive bi-amping scheme.
Sorry, I meant bi-amping or tri-amping just as you stated. I wrote bi-wiring and bi-amping by mistake.
My turd-polishing comment is accurate. Whether you believe it or find it disparaging is your point of view....not mine. 
I find your turd polishing point of view to be that of a narrow minded man that won't allow himself to understand the performance gains of higher quality components, wire, connectors, etc. And I typically don't say things like that but the point was not to express my point of view, but to help you understand how such remarks come across. And then what if I said, oh did my point of view poo poo on you? I'm sorry, I still find it to be accurate. If it sounds disparaging then maybe that's just your point of view... I mean really Davey, why poo poo on someone interested in upgrades to their speakers?