Why aren't you looking at the newer plots for these speakers? Here's the 5 yr old plot for the M80v2 (which I imagine isn't particularly accurate any more), and it's way better than that M80ti plot you're using:

http://www.soundstagemagazine.com/measurements/axiom_m80v2/

That's the newest Axiom plot they have. The next oldest one is from 2002. The one you're using? 2001.

QED: they're making improvements in sound quality. They may not be doing it how you'd like (eg with exotic materials and parts), but they're doing it.

I am the Doctor, and THIS... is my SPOON!