It's certainly "interesting" from a commercial perspective*.
Setting aside my own bias toward paying for American-designed and -made instruments–if I was a touring professional, I'd be more inclined to carry a Music Group-designed and -manufactured instrument along for the ride IF it was branded independently, rather than with a Behringer logo on it.
Therein lies the rub: at a certain price point, I feel much better about spending my money to support smaller, specialist manufacturers that embody a commitment to improving the MI industry with innovative instruments and shared technology, rather than large volume-driven conglomerates whose primary role is to increase shareholder value and reduce manufacturing costs. If Uli B wants to set up a dedicated synthesizer division with its own branding, then that's a good place to start–the company would necessarily be judged on its own merits, and the sound of its instruments, rather than the notoriety of its corporate parent–even if it's just an illusion of an independent company.
* - Another side effect of this, however, is that it levels the playing field a bit: if DSI can continue to manufacture great-sounding keyboard instruments with analogue filters, and Korg can seemingly generate new Volcas from Petri dishes every six to twelve months, what is wrong with Roland and Yamaha? (Or are they respectfully forgoing this business segment to allow DSI to grow? )
But, DSI Instruments in their last couple of releases HAVE dumbed down and reduced manufacturing costs by releasing a 49 keybed instrument (in homage to the Prophet 5 that had 61) then, use the exact same chassis to bring out an Oberheim that had to then have 49 keys and only allowed 6 voices as that was all the prophet 6 template allowed. DSI are already playing this game. Hopefully this was just a blip and they have a serious instrument up their sleeves for Namm.
Otherwise, Uli might bully his way to the top of the synth chain.
As far as name keyboard players not wanting a Behringer badge on their instruments, what if Uli bought another synth manufacturer to release his products under? He already has Midas, Turbosound, TC Electronic and Klark Teknik.
Also, even though badged as a Behringer, the X32 blew everything out of the water in the live digital desk market.
Hopefully, this Behringer synth will make everyone 'up their game'. I think it sounds great but due to the size of the keyboard, I won't be getting one for the studio.