We don't live in communist China. The government isn't obligated to halt trading because "something bad might happen." And it shouldn't either!
Do you want FINRA to stop a 200% daily run in our favor because the shorts ask for it? This is a deregulated wild west OTC market not a place for security blankets. If you want to feel safe buy treasury bonds!
The short attack wouldn't have worked if people did their due diligence and didn't have a stop loss. The best way to protect yourself is to be an adult and as Danish says KNOW WHAT YOU HOLD!