Keilwerth saxes (S/A/T), Selmer clarinets (S/B), Altus Azumi flute
I agree that people will probably use it for midi input and other non-practice uses, but it's clearly marketed as a "practice saxophone" so I don't think the manufacturers have any responsibility to explicitly support performance modes (though they already do, by making it midi-capable for example).By happenstance, I just saw your video yesterday. I think the Emeo does have some genuine utility as a highly portable, silent practice instrument that still feels like a saxophone. However, considering its relatively high price, and the normal versatility that comes with any device that is software-controlled, I think it's inevitable that Emeo purchasers will want to experiment with the instrument in a performance setting. The company should expect that, and do what it can to support such players; that probably includes providing a good selection of realistic saxophone sounds.
I also agree with @Felicitysax that any saxophone sounds are going to be disappointing for a real saxophone player. Moreover, very few performers that use EWI devices meant for performance actually perform using saxophone sounds, so I don't think that the Emeo manufacturers are giving up on some large segment of the market as a result of the omission of saxophone sounds.
Personally, the biggest knock against it that I see, in terms of its stated purpose as a portable, use-anywhere practice saxophone, is that it requires external devices and software. Its closest competitor, the YDS-150 (which is also advertised primarily as a practice saxophone), does not require any external devices or software for its use (i.e., you can just plug headphones directly into the device to practice silently), which makes it much more "portable" IMO.