He was too involved in Feanor's plots to be held blameless. At least that
is how it reads in Morgoth's Ring.
Miriel, on the other hand, is not blamed by the Valar, or despised, but only
pitied. And she does spend the rest of eternity weaving beautiful and
sorrowful tapestries, which I would sure like to
see.
“I dislike Allegory - the conscious and intentional allegory - yet any attempt to explain the purport of myth or fairytale must use allegorical language. (And, of course, the more 'life' a story has the more readily will it be susceptible of allegorical interpretations: while the better a deliberate allegory is made the more nearly will it be acceptable just as a story.)” (From Tolkien Letter # 131.)
