GIMP: UFRAW - question

I managed to install the develope-engine for the raw-files, quite the same as the How-to described it a little earlier in the (closed) topic in this forum. Rather slowly, it seems it can do all the expected.

However, a question: Although exposed in Adobe RGB the colour-scheme is sRGB, and it is exported as 8-bit only, I can not use any 16-bit-image-format, so after all the result is weaker than the camera-jpg.
Is that the status or did I miss something ?

Martin