It sounded like he was trying to counter the narrative that Bambaataa's contributions to hip-hop ought to be thrown out because of his wrongdoings.
Maybe Kris thinks others are piling onto Bambaataa because it's easy to do so and feels he can't throw stones at other people because of their transgressions because he simply would be out of stones.
And he did say that he didn't want to disregard the harm done to the young people Bambaataa allegedly abused. (I haven't followed the case closely so I'm not sure if he has been convicted, which why I used 'allegedly')
I don't hang out with MC's or producers but from what I hear the culture of the creation of hip-hop is 'messy' and has more than its fair share of deviousness. It's just the way hip-hop culture has evolved over the years.
And hip-hop, like in other aspects of society, has a way of insulating itself from accepting criticism for bad behavior. KRS's comments may be righteous but they are tone deaf and they make him seem like he's minimizing the effect of this scandal and the harm it has had on the lives of the young people he deceived.
There was a way to say, 'Bambaataa's life has been committed to the evolution and development of hip-hop' without avoiding the harm he has affected on the culture and others.