I can understand your concerns. 2 million USD sounds almost too good to be true and then it's even a well-known cryptocurrency that you will receive and not just a newly generated token. It would be good if someone from the BCNEX team can tell us how they are funding this airdrop because I don't think it can be (and it definitely shouldn't be) funded with their ICO money. Who knows, maybe they'll even have a partnership with Ripple?
In the first instance I would have said it as scam. However I am travelling with the project for long time now. Hence I wont say the project as scam.