This step by Binance is good for bitcoin publicly. This authorization to operate in Poland would make more people use the currency in that country. They are not authorizing Binance operations because they love or want to support the crypto Industry. But the government's target is to regulate the crypto space, invade privacy and collect taxes. Regulations negate the sole purpose of bitcoin, but for now, I think exchanges are doing more publicity but in the nearest future they might end up having lesser influence.