Stepping back, norm breaking seems to have gotten even more newsworthy lately. However, publicizing a broken norm is not always an obvious good. Propagation of the news of a norm being broken encourages more breaking of this norm. And often we have little understanding of the work this norm is doing.
Is it damaging for a child to entertain the idea that their parents might regret their existence? Probably. Is it damaging for all involved to have a big conversation about motherhood regret and its being ok? Also, probably. Not every thought deserves to be aired.