2.It's no big deal that many companies might lose their license in Estonia.
They will have to move to another country,so I don't think that this would be a "big blow" for the cryptocurrency industry.
3.Estonia is a small country with a population of less than 2 million people.The Estonian market is really small,and most crypto companies currently operating in Estonia are focused on the global market.This means that Estonia isn't important for the crypto industry,despite being one of the first crypto friendly countries in the world.