I think there should be several partial failure conditions in the future, such as the retro-jettison stage, if it fails reduces the 'safety' of the re-entry stage. Just like on John Glenn's Mercury mission and Boris Volynov's Soyuz 5
Of course there are many other examples etc but this is the one I had in mind.
(I apologise if you didn't need reminding of this! which is probably the case... better safe than sorry
