That's emphatically not what "stick to sports" means.
For a lot of people, sports are an oasis of tranquility carved out of the incessant rage and cultural bickering that blares 24/7 everywhere else. There's a lot of old duffers that would rather hear about David Price's fastball rather than his political positions, or Kyrie Irving's crossover dribble rather than his speculations on the geometry of the Earth.
It's still a weird pivot for Deadspin to take, because that was never what they were about or where their audience was. My suspicion is that it was a reaction to the ratings baths that ESPN has taken as they embraced the culture war, rather than Top 10, box scores and replays - and alienated a big chunk of their audience. In both cases it's a warning about knowing your brand and your audience...