I think that not only hunts are broken. Main post lvl 50 system is broken too. In normal way you should grow doing new more difficult duties and modifying your equip using drops, etc.
In real life on this way you will meet in your duties overgeared and overskilled players who have many variants of reasons to enter such duties. If you are i70 or i80 you will be unable to overneed/overgreed i90-100-110 player and will miss any valuable drops.
Myth/soldiery/seals girinding gives you an ability to get i90 gear, then i100 and upgrade it to 110

As a result - payers lose a motivation and fun - grinding is not ineresting and players grind in a hope than they will gear up and theeen... and what? Next coil? It's pretty the same as prev.