it is not about ninja mined steem per se. steemit had an unfair advantage in that mining so they got shit ton more than others (there was also a restart at day one or two because some problems, and some speculate that steemit had some problems with mining so they did not do as well as they thought. not confirmed). and they said it will not be used for voting and influencing witnesses.
RE: We Neutralized an Existential Threat, But Exposed A Threat to The Individual