in the original game the clerics could trough hla create some useful potions and divine scrolls. EE removed it while it kept the similar rogue hlas.
those potions and scrolls could be useful but surely was not op or game breaking, some of them was also quite valuable, but at the time a cleric gets to the level that he can use hla and has already chosen the important ones usually money is not a problem.
the result of it is that every single class cleric or dual into cleric at high level has to "waste" a lot of hla while leveling up cause he has already chosen all the available ones.
a maxed anomen has at least 10 level upgrades where he can not choose any hla cause he has already learned all the possible ones. i find it very frustrating, not cause it underpowers him, but cause it seems to me a sign of bad design to remove something existing before, not game breaking at all (some more potions and scrolls to use each day) leaving instead a void spot.
so here is my poll about it, i appreciate if you post the reasons of your personal vote :
pointed out below those cleric hlas come from a mod, easy of use, and are not native of the original game. i apologize.