I think that's a big part of it. I also think DC in general, and this subreddit in particular, draw in "law & order" types from both the right and center. And local news deciding to harp on it constantly of late doesn't help.

Citations Needed did a news brief episode on it recently that's a good listen: https://soundcloud.com/citationsneeded/news-brief-dc-medias-fare-evasion-meltdown