From that link, "Given that we hear only when our eardrums move, under the impact of the air molecules right next to them, then our goal really is to move those particular molecules the correct sub-microscopic distances at the right times. Each molecule knows only that it was hit from behind, and so on... all the way back to the speaker."
This is correct if the sound is purely air-borne and not impacting any other part of the body but extreme low frequencies are usually perceived through the body itself. Bone conduction and body size help to augment what comes in through the ears and in fact, hearing isn't only from the ear drum moving. "Hearing" is stimulation of the auditory nerves through movement of the cilia, whether that's by vibrating the tympanic membrane & the rest of its mechanism or through the vibrations traveling through the body.
Also, the molecules can move by being "hit from behind", or being "hit" from any other angle. Remember vectors? Time alignment is nice, but it's really hard to implement correctly. Point source? A piano isn't a point source, neither is a piccolo. A speaker manufacturer who claims to make speakers that are a point source can't succeed. They can come close but even if they come extremely close, a piano can't sound absolutely accurate because the low notes come from one side and the high notes from the other, almost 6' away. If a speaker makes a piano sound like a point source, either the speaker/reproduction system or the recording process has failed to be completely accurate (single mic to record a large instrument).
All of this being said, even if a speaker can reproduce the input waveform with absolute accuracy at close distance, the room will affect it unless the sound is completely directional and even then, we'll hear it differently from the way the mic picked it up because we have two ears that aren't coincidental in space. I agree that time/phase alignment are critical but I haven't seen any real evidence that these speakers accomplish this. Claiming "The result? You hear what we hear --the smallest inflections of music, the slightest sound effects, the grandest dynamic expressions, the subtle sways and surges, ever-changing timbres and full range of emotions."- that's just marketing, not science. The smallest inflection of music coming through a dynamic speaker system that may be 5% efficient isn't going to allow tiny inflections to be reproduced with absolute accuracy.