That's true to a large extent, but there don't seem to be any English-language guides which do the job (this is for the Pyrenees, btw - haven't been to the Alps for ages).
What we've found the cicerone guide good for in the last couple of years is to mark the best approaches onto mountains, and then we've taken it from there. With a couple of kids in tow, it's been fine.
I don't know if Dan Bailey is still doing UKH, but THERE'S a man who knows his ridges. Might well be worth asking him.