"so what, fix RSS first" seems like a valid criticism even if it really is true that this isn't something this particular person has any control over. If your organizational structure is forcing you to do something dumb, then there's a problem with your organizational structure.
Maybe - I don't think letting engineers decide all prioritization is by definition any better than having it all decided by SVPs trying to get their EVP promo or next stock bonus - but "fix Google's organizational structure" is about as helpful/useful a comment as "so what, fix RSS first."