I don't see any problem with EOS is using an Ethereum based token for crowdsale. As EOS does not have a token yet, they are currently building a completely new platform from the ground up. So if you are selling a token to gain funding to build this new platform what is currently the best platform to use? Clearly right now it is Ethereum. Do you really think @dan is going to sell all of these EOS tokens and then screw over everyone when he releases the new platform a year from now? That is not a way to release a new platform to the masses and get developers to build upon your new platform. Obviously all EOS token holders will receive the real tokens when the platform is built, you just have to be patient. Personally I'm very interested to see what EOS will bring as steemit and bitshares are both solid steps along the way.