This is only biased if we can provide concrete evidence that similar tabloid-esque publications that happened to align "left" of the political spectrum in the U.S. were allowed to pass while their political counterparts were passed up.
If the standard for journalism remained constant, but the sources that were "suppressed" largely happen to be conservative that doesn't seem like a problem with curation, it seems like a problem for the conservative media ecosystem.
I fully expect, despite adhering to basic scientific principles, to be downvoted yet again in this thread, because I already see a lot of the same names from the last time this article was posted and politically charged rhetoric (i.e. "leftist agenda").