Board Thread:Theories and Speculation/@comment-31099706-20170327120301/@comment-734582-20170328195248

QuakingStar wrote: Ok, so we can only assume that Fugaku and Sasuke could break a watered down Tsukuyomi then. Nobody else can. Anyone can break it in theory. It's just that most of the time, it's not exactly something you'll be allowed to survive. Having CS, Sharingan and a blood relation to Itachi, as well as having survived at least two meant that it was easier for Sasuke to break it than any other person.

I'd argue it's similar to most MS techniques: They can be countered (some even fairly easily) if you know what you're fighting. It's just that you're unlikely to know what you're fighting (and unlikely to survive if you get caught).