The multi-driver approach used by Ossic has been criticised by several participants in this thread. I have no idea how important the peripheral drivers are to Ossic’s approach, but of course the Smyth Realiser works with any headphones so (in practice) there is a successful approach to the problem using only a standard pair of drivers. The assumption would have to be (assuming that the Ossic X works) that Ossic found a parallel solution that needed the multi-driver hardware. But of course both the Audeze and the Ossic have onboard decoding, so you could argue that this alone requires both manufacturers to issue headphones. It could also be argued that the marketplace will never accept 3D head-tracking cans until everything is fully integrated.
What the comparison between Audeze and Ossic also makes me wonder, though, is why both manufacturers lean hard on usage in games. I know that Audeze claim to have audiophile standard for music as well, but I have to question whether both manufacturers aren't depending on the fact that games sound is encoded for positioning rather than fidelity. If you’re focused on where a sound is, does that distract you from how lifelike it is?