Well, I have to responses for your question.
The first is, I am not sure if this applies to the ADR-NBG shares - meaning the American stock market. If it DOES APPLY then yes, I think this would be a good thing for sure.
In regards to short sellers, come October 1st - today - they cannot use that mechanism to drive the price of the stock down. This would not necessarily completely hault a drop in stock value, as if people genuinely felt a lack of confidence in the stock and wanted to sell it for a loss they still could.
Obviously, this stock has been manipulated heavily and that is why the powers that be came to the decision to halt short-selling of the stock.
Best of luck to us all!