Game designers, and I'm including tabletop rpgs, love having status effects that freeze, paralyzed, or do a percentage of health of damage; but they always neglect the fact that they're ineffective against hordes of weak enemies and are overpowered against strong solo enemies.

Really wish they would have more foresight than to just make it have zero effect on bosses. I'd be satisfied with it applying a weakened effect instead of being outright immune.