All of these have had important positive contributions, but don't idolize any of them. Some of them have adopted problematic positions (IMHO) on various issues or promoted political causes of state establishments. Some are dismissive or even defamatory of people with more radical political views than theirs. Some aren't and I only have good things to say about them, but the point is - we should always judge stories and commentaries by the merit and never fully trust someone even if their record is positive and impressive.
Some humans aren't perfect; film at eleven. I don't think any of the "trust the mainstream narrative" authoritarians ITT are comparing Assange to Aaron Maté. They love the pablum that Rachel Maddow feeds them, and they'll grasp at any irrational straw that could help them keep slurping it down.