Doesn't that only refer to people that are using the command line prompts for purchase and transfer? You can use the metamask interface for much easier purchase and claim of your tokens or even use their instructions for myetherwallet that are listed on the site.
Correct me if I'm wrong, but it may not be necessary to use the command line if you have the ability to use one of the other options.
RE: !! EOS ICO - Registering a Public Key !!