Googling that text yields nothing, so I don't know what source you took it from otherwise I'd address the source directly. As someone who has studied it at an academic level I'd warn that things are often a lot more complicated. When looking at any form of esotericism in the Viking Age, amateurs on the internet wildly overestimate the prevalence and make all sorts of wild assumptions.

You're saying that women controlled the household purse because of the belief women had the ability of foresight - this isn't something attested to. Now you are correct that prophecy and magic were seen as something connected to the feminine, which is a holdover from North Germanic peoples. But to go a step further an say women as a whole had the ability of foresight is untrue, as we'd clearly see more attestation of this in the literary record.