It's as frustrating further down the damage levels too - I actually enjoy the challenge of hydra and can get prob 500mil plus each week and am consistently one of the two or three highest damagers in our clan. I can probably do a bit better if I regear etc. We clear normal and hard.
However this week is a prime example of the stupidity of clash - in one of our competitor clans two players have trunda based teams and put up 705 mil and 585 mil in one key each on normal. My clan simply can't beat that - becuase they happen to have pulled one particular champ that breaks it. So I'll have spent probably three hours or so manualling it for possibly no reward other than the normal chests.