You can walk over most enemies in the game in your sleep with the right skill combination, but because some very special enemies can't be cheesed, that's suddenly Bad Design? I don't think so.
You did not get my complaint. I have no objection zo a hard fight, but any objection to a boring one. IF the guardian was in any way equipped to do real damage to my party, fine. As he is not, it is just and only boring. Hard would be different.
Thanks for the spoiler, but I already play the game since quite some time ...
Regards,
Thorsten