I don't have any experience, as I have never tested this by myself, but there is a discussion here where people say its broken in combination with another set.
I assume they mean the OPs who took 5k Tarnished procs + 30k in assorted damage and are dying because their build is likely lacking. You are right though, no build will save you from the Tarnished exploit unless youre just running a block tank. You can even die from it inside of a ballgroup that is stacking a group worth…