I was making the point that Live View is a good way to get accurate color
balance at the time the photo is taken, especially under light sources
without continuous spectra. The issue is not whether a camera can take
raw
and compressed images at the same time, but whether one /needs/ a
properly
balanced JPG image /right away/. This is impossible with a raw file.

And how would you suggest that someone gets around that problem? It's
not always practical to shoot a white card & create a custom WB at the
time. (And in my case, I can't do it because the light's changing too
fast to get a useful WB from a white card anyway.)

Is deliberately misreading and misunderstanding what people post your
principal hobby?