I'm not sure that I could say that bitcoin has achieved any goal so far. It's still quite young in it's development and has much more to do before we can say that it is a legitimate currency. It's not being accepted by people around the world in the same way that other currencies are. It hasn't been integrated into many aspects of society. It functions as a way to transfer money from point A to point B, but that's about it. It's also a secure way (if used properly) to save up money and gain value over time. But it cannot pay your electric bills, buy your clothes from Amazon, or pay for your food at the restaurant. It isn't fast enough yet.

And where does this 250k by 2022 figure come from?