No, but you should assume that your ISP will choose it's fiber/DSL/whatever rollout strategy to maximise it's own profitability.
And even if it gets subsidies (which is the case here), I would expect it to spend the public’s money well instead of building kilometres upon kilometres of wiring to connect those three farm houses in the Black Forest.
So I should choose my preferred living place on the premise of maximizing profitability for my ISP? I don't think so.