From the article, the author is able to be on the board for an Estonian company and take payment in Euro as a consultant. He can also e-sign documents.
Isn't it relatively easy to open a Euro denominated account in most countries?
For an individual it is, not so much for a company
I don't know about other countries but in India it is fairly simple to open one for a company (they are called FCNR accounts). I don't see any government having issues with foreign income making its way to local businesses.