Quarantining it altogether is under consideration, but as mentioned in the link above, this will need further planning.
During the last year and especially the last 6 months, it was widely known that /r/politics was basically a front for CTR. Pro-Trump posts and even Pro-Bernie to some extent were like a dog who speaks, very rare. Personally I think that the mods tried to counter balance the_donald by making sure that /r/politics was as biased in favor of Hillary as they could.
My guess is, this was the last election cycle where Reddit matters at all for Republicans because it's clear the platform doesn't like free-speech for the sake of free-speech.
admins are employees who work on the platform.
mods have no power to edit the algo.