Because my database doesn't work that way, but I always forgot to add a morale check there.

So it is supposed to go away once morale drops below a certain point?

there's a bunch of abilities I've seen where a unit gets a constant effect buff thats something like +6 melee attack or defense, etc. I also don't understand why these are constant abilities and not just baked into the unit

I only think such constant effects should exist if they are conditional, like if they turn off under 50% hp or whatever