[rasengan]

1) Nowhere is a private key exposed in the process. I do not know how you came to this conclusion after reading the paper and the code.

2) Namebase definitely makes things easier, but you can absolutely claim your airdropped coins locally on your own computer.

As a final note, if you think this is targeting those with knowledge in the areas of cryptography, I assure you, any cryptographer who reviews the code and paper would not have the same conclusion as you.