Setting a hard windfall tax limit on gold of say $1000.00 without an inflation adjustment mechanism would be ludicrous.
This would then subject the miners to the inflation that is inherent in the fiat currencies to begin with. If inflation was high enough eventually the cost to mine an ounce of gold would be more than 1000.00 per ounce. The entire Ecuador mining industry would have to shut down for lack of profits.
Inflation protection is one of the main reasons why people invest in gold in the first place.
I personally considering the source of the article am not putting much stock in this story.