Is the Accuton driver that good?

They are an extreme - lightweight and extremely rigid. Unfortunately, this means they are not that good overall. The approach to building a driver is a balance of many conflicting properties. For sure they are extremely lightweight, so ceramic drivers absolutely excel at linearity (pistonic behavior) but the price you pay is in resonance from ringing. This tends to create what I call a splashy sound compared to well designed damped drivers (pulp/paper/doped/fabric/polypropylene etc.)

Those little dots you see on the accutons are there for a reason - to try and compensate for the overly strong ringing problem. Speaker manufactures will also use "notch" filter with lightweight highly rigid cones to help compensate.

Of course, all designs are a compromise but my opinion is that it is best not to go for an extreme in the diaphragm but to choose a material to try to balance conflicting objectives. A design that requires heavy compensation for unwanted properties is not good design to begin with.

Just two cents... I understand those who will say "oh but it measures so well" on a frequency response plot...

Face,

They are indeed easy to work with but that was not my main criticism of the design. An approach that depends on the Correction of audible artifacts is simply not a great starting point for a design.

The sound of any good driver depends on the skill of the speaker designer

Huh?

So one can simply use cheapest drivers with small diameter voice coils, small magnets and with a long coil in a short gap and it will still sound great depending on the skill of the designer and the quality of the veneer?

Oh Puleeez....you are sounding like a speaker manufacturer!!!!

He stipulated a"good" driver(not any driver) and he`s right, a good speaker is the result of the total package,

Yes, you are correct. I stand corrected. For some reason I read, "any good speaker" rather than "any good driver" - anyway it read like that to me...my bad!