to be honest, not really. but you never kniw until you try, and i might be wrong.
but it appears you have 2 dishes that could share 1 sauce.
the powerful blackened tuna would do well with the sauce, but with a simple starch.
the crab ravioli is delicate, and if the sauce were so, would match well.
the two together seems like eating off different plates, imo.
but again, you won't know until you try.
A true lover of nature does not despair now that his mistress has turned a colder cheek.