I don't know if they have been tweaked but some of those FATE monsters I can't solo them, for 20 seals. Yet the B rank weekly ones are no issue to solo for 100 seals. Voluptuous Vivian for example I couldn't even put a dent in that thing solo. Course that was a little while ago, have since got a little better gear. I know some of the FATES are for team play, but at least the ones for the hunts should be able to solo them.