"Dead" is an adjective, modifying the antecedent of "he", not an adverb modifying "is".
Contrast "he is well", where "well" modifies "is" as an adverb vs. "he is good" where "good" is an adjective modifying "he". There's no grammatic signifier which is which beyond the modifying word itself, so you need to see whether it's in adverb form or adjective form.
I did consider it in that light. This analysis is from the perspective of an observer, not the presiding body. Since the presiding body's reasoning cannot be known, we observers just look for patterns of removal to determine whether censorship is occurring. These are the pattern-markers I look for.