We should try to follow the money more when such rules are implemented.
Who benefits the most from this? Big, big breweries who feel probably threatened by people who brew good beer (as a Dutch colleague of me said, they make Heineken by pumping the Maas water into the bottles).
This is a US problem. What company bought (more or less recently) a US brewery? Those Brasilian pump-and-dumpers do not know anything about beer, only about making money by selling something that resembles beer and manipulating the stock market, and since it is rather easy in the US to bribe officials, this really looks a move from their side.
We are not here to decide if we are paranoid, but to decide if we are paranoid enough.