You're joking, right?
Even with Cures, we couldn't keep hate if our lives depended on it, anyway. Tranquil Heart is much less the "END OF DAYS" as it is the cockroach that spits on the former location of a civilization that has already been leveled with an atomic bomb. Since it literally serves no purpose but spite, we're naturally going to get as many levels of it as they can fit.
Not to mention, have you *tried* gearing for Enmity+ on Red Mage? Are you aware of how absurdly little gear we have for it? I mean, you would've thought that S-E would've added more gear with Magical bonuses on it that came with Enmity+ as a "downside" . . . but the only place that really happens is in mediocre Einherjar equipment with PDT+% on it as well.