No, it only suggests that they did not want Bernie supporters to solidify behind Clinton. The strongest suggestion is that they did not want Clinton to win.
It shows they wanted to prevent Hillary from building supporters to hurt her campaign and were explicitly strategizing how to achieve that end:
"if you have anything hillary related we want it in the next tweo [sic] days prefable [sic] because the DNC is approaching and she will solidify bernie supporters"
They explain their interest in a Bernie angle as a result of Trump, in their minds, having a low probability of winning:
"we think trump has only a 25% chance of winning against hillary . . . so conflict between bernie and hillary is interesting"
Yes, they were. Fox News hate democrats. CNN hate Republicans. Assange hated Clinton ever since she said "wouldnt it be easier if we just drone striked him?".
He still didnt conceal any leaks in pursuit of that goal and he wasnt a russian spy. Nonetheless, both claims are frequently made in the mainstream media linked to Democrats.