True, many leftist news organizations have been consistently defending him and calling this out as an attack on free speech. For example, the Intercept, Democracy Now, Jacobin, etc.
But that's the marginal class-based left; the liberal left, meaning the ones with any sort of power (e.g. Democratic Party, the Guardian, WaPo, NYT, etc...) generally have a history of condemning him while sometimes at the same moment profiting from publishing his leaks.