Why do only US makers focus on time coherency?

Why do some companies who produce highly regarded speakers...I wont name names...seem to discount time coherency...while others base their whole design on retaining it? It baffles me(no pun intended!)...

Sean99...well done...very articulate answer...and as a former Spica owner myself...you have good taste has well! cheers...one last note...there was a post awhile back...hell...I might have even initated it...at any rate...Joeseph from JA brought up a good point...if time/phase is that important and detectable...why do phasecorrect speakers sound different? I actually think they share more sonic traits that other speakers...that is very spatial, 3-d imaging...however...not everyone is a proponet of this sound...some prefer a more forward, "in your face" presentation...which Brit speakers(I hate to generalize) due very well...hey...I like most Brit speakers to boot...but I prefer the addictive quality of phasecoherent sound when pushed to buy....

Another discount...most people have never heard the sonic benefits of a truly phasecorrect speaker...including other competing companies...which maybe why they so eagerly discount the forementioned benefits...

Sean99 good question...although the SPicas' front baffle is quite wide...it is covered in felt which greatly reduces "smearing" (which you already know)...and does come into play...along with the SPicas unique crossover network and sloped baffle...to certaintly "behave" like a phasecorrect speaker(which you already know as well!)...I believe it was marketed as such...but the mid driver does have a 4th order crossover componet...not sure...at any rate...enjoy your Europas! I am an owner as well(as are many others)...and suffice to say....I have been very pleased with my purchase...they have that "liquid midrange" presentation which few have...I have mine 4 ft from the rear wall and and about 4 ft from side walls with a listening triangle distance of 9ft...they dont quite have the recessed sound of the SPicas...but they do have improved transparency, detail and bass...as well as imaging and soundstaging that can only be described as breathtaking...tell us what you think!