You're doing that thing again where you conflate a subset of a movement (a subset that's controversial within the movement, to boot) with the entire movement. That's also an annoying thing.
And I reiterate: no one's being put in an SJW mindslaver. No one's being regressed by people saying that maybe the LOTR movies have anti-black undertones. I was talking about how people claim that discourse online is somehow censoring people, which is pretty much the only context I've seen "regressive left" used in. This is an entirely different can of worms.
Are the things described in the article worrisome? Sure, a lot of that is fucked up if true. But I don't really see the problem with wanting news to come from ideologically neutral* sources. I'm pretty sure you wouldn't take it seriously if someone was saying unsourcedly on the "SJW" side of Tumblr that white people invented cancer to kill off the Romani. You wouldn't pass that off as "news". Same with conservative news; doing some double-checking on whether or not the thing has been reported outside of the conservasphere is just common sense.
*for a given value of neutral