Currently used microwave links have similar limitations. Maybe they're more resistant to fog.
I think planes flying so low to obstruct tower-to-tower LOS are danger to more than just an internet connectivity ðY...
Yeah, but taxes in NL are so high, no-one would come to work there otherwise. And the "30% ruling" only brings the income tax to the level you experience in most other European countries.
And it's not only for foreigners. You can be Dutch national, just living abroad for certain number of years.