I'm no fool when a brand clearly have design patents and a different way of design and engineering - but when a small company like that exists, it makes more sense to allow other brands to rebadge models paying license fees than be swallowed up by other companies.
I may worship SEBO but unlike Miele and Bosch they are not a large corporation - thus it makes sense to offer brands under different names rather than spend massively on promoting the single brand name worldwide. If you know anything of SEBO they are still a family owned business and its only been of recent since the 1990s that they have dabbled with the cylinder vacuum market, straying a little into the domestic market as opposed to their commercial uprights. IF they wanted total market domination, you'd see the SEBO brand name worldwide and those brands such as Diversey, Oreck and whoever else sells the commercial based uprights under a different name wouldn't get the machines anymore.
SEBO operates a bit like the Austin motor company's original Austin 7 - their Austin 7 was made all over the world and from other manufacturers such as BMW, American Austin and then copied by Nissan in Japan, though did not have license to. It may be a car, but the similarity between both the original SEBO design and the Austin 7 have a lot in common in terms of worldwide availability.
The Insight is a good SEBO copy though. Whether it appeals to general buyers over the existing SEBO design remains to be seen.