While that might be applicable in many cases it isn't in this particular one.
Both the main subreddits and blue sky's default moderation prohibit things in the middle of the right's Overton Window (e.g. on Trump or trans rights) while X does not prohibit things in the middle of the left's Overton Window.
(I dislike using the terms "left" and "right", but as vague as they are, this phenomena applies for almost all such categorizations)