The only "fix" hunts need (IMO)
Increase the spawning window time.
More allied seals, less allied seals, couldn't care less.
Increase the range at which monsters spawn, remove the grind from them and increase the hunting/searching/RNGingn aspect of hunts.
I say, from 2 to 6 hours after death, there's a random chance the A rank might spawn.
S Ranks are ok, I guess.
What will this do? Players won't spend 2 hours in a row killing all the open windows and then waiting 1 hour for them to spawn again, rinse repeat. Instead, players who search frequently/randomly will be rewarded (and leeches won't be so rewarded because they're not expecting hunts every minute of the day and get caught off surprise/stuck in a duty). Those who expect hunts to be a farm, will be left disappointed and curse RNGesus.