We just need one big exchange such as Poloniex to do it and it will bring enough attention to Byteball. This + all the ICOs "whales" diluting each others byteball, we can have an equilibrium with our own funds as individuals.
Exchanges have their own things to worry about. To do this kind of distribution is a not-so-small task for them, and what do they get from it? So I don't think they will care unless they get a fee out of it.
They have BTC, so they will get byteball. And if they accept it after the distribution they will win fees since people are going to sell and buy their byteball. It's a win-win for them to do it.