That IS a set of Streamliners mounted to their base bar. I’ve ridden those Streamliners for years before I went to VisionTech. Kind of like using a Zipp 404 rim …sticking a hub and spokes on it and calling it anything you want.
No, it is not. The “base” bar is totally unique.
This aerobar is the production version of the Syntace Blackbird prototype one piece bar (as shown at Interbike at least 2X). Although I have seen a few around, Syntace never put it into production. I believe it is former Syntace employees behind the re-birth.