There's good logical sense to this. High Magic would be like knowing Greek or Arabic in the Medieval period, plenty of examples but pretty rare in real world terms. The Hedge Magic would be in every village. There'd be many women who, like the 18th cunning woman interviewed in Yorkshire, would say, "I don't
Witch I
UNwitch!"
There'd be lots of small scale occult practitioners, as in our real history, only these guys would be more effective, much more effective. The
Hedge Magic offered is very good. But the village
Wise Woman would need something like the Herb Lore Magic from Phil Master's Alchemical Baroque.
Cunning Men would use something similar, but with different strengths and limits.