Very impressed with that BMW but like most BMWs I just don't "want" one in the same way I long for an RS3 (tho if I had the money I'd buy a 2nd hand TT-RS instead).
... it is an RS Audi. The brand represents what Audi can achieve in a sports car...
No it doesn't. Audi is a company. They design their cars for maximum profit. This amounts to two things: compromise for the sake of better margins, and compromise for the sake of increased sales. Audi know what they are doing, hence why their sales have grown year on year at a faster rate than BMW and Mercedes and why the A3, A6 and TT are the best selling cars in their respective segments.
Not everyone is an enthusiast. Not everyone wants a racecar for the road. Audi have positioned their car and engineered in attributes that it feels will give it the greatest profit. As a technical exercise, I don't think this is the best Audi engineers could do as you have implied.