I think they did the right thing in not bowing to manufactured outrage from the right. It's the latest tactic employed by the scum in their ceaseless attack on women and minorities, or anyone who supports them in their fight for equality.For the record, I think that's a troll thread. Partly because the two statements don't compare in the slightest, as you rightly mentioned. Partly because they are not mentioning a subreddit and each subreddit is moderated differently. You can't make a sweeping statement about reddit.
That said, there can be a disparity between what is deemed permissible to be said depending on race. May I remind you Sarah Jeong who didn't get fired, didn't even apologise for the below tweets.
Meanwhile, we have Police giving community orders and tagging teenagers who post screenshots of Snoop Dogg lyrics on instagram, because they contain a racial epithet:
https://www.bbc.co.uk/news/uk-england-merseyside-43816921
Obvious jokes, tweets plucked out of context, tweets meant as responses to racist asshats. Her only mistake was engaging with the idiots in the first place.