If you are given an option to take $1B worth of value in a token of value of your competitor or not take $1B, would you take it? It might be that simple. Other than that, I don't know. Could they manipulate the ETH market once EOS is up and running? Maybe. Could they fund conversions of ETH DAPPS to EOS DAPPS using ETH? Maybe. It's a good question for @dan.