Nothing is wrong. As written in my original article, you can register your EOS key at any point between now and end of ICO in 341 days. Claiming, however, can only be done after any window you've contributed to has finished/closed. The first window is still open, thus, you cannot claim your tokens until it is closed.
RE: How to update the EOS public key mapped/registered to your ETH Address with MyEtherWallet (MEW)