Because it's not just Ciphers who are affected, and that a mathematically unbalanced game is not enjoyable for those who have to deal with it? Also you say you love playing Priests, but they are also one of the classes adversely effected by this change. Under this new change you will need Strength, Dexterity, Intelligence and Resolve, As opposed to Might, Dexterity and Intelligence of old.
The reason this is so bad is that Priests although not to the degree of Ciphers, still relied on their weapon. For a majority of their career their spells are about strengthening themselves and their allies. You don't think it's immersion breaking for a priest of Berath to absolutely suck with his greatsword because it was the only way for his spells to matter at all?
As i said in the previous thread lets take two statlines. This is with a Death Godlike who is a multiclass Priest of Berath/Devoted fighter to fully realized the RP of the Pallid Knight.
Old System
Might:18
Constitution:8
Dexterity:19
Perception:10
Intelligence:19
Resolve:3
New System
Might:14
Constitution:8
Dexterity:10
Perception:10
Intelligence:18
Resolve:17
That is a -5% loss in duration, -6% loss in AoE size, a -27% action speed , -18 Ref, -12% melee damage, -8 Fort
These are not little things, these are very large losses in overall efficiency. And if i were to run with a Cleric using the former statline just buffing myself and striding into combat. Not only will i have lost any ability to heal myself, but the Priest bonus spells per power level will be completely wasted as i have no ability to damage anything with them
It's fair to say that flexibility could very likely be nerfed, becuase it will indeed be taxing to focus on STR and RES, but these changes do not happen in a vacuum, I suppose. If we have 4 months of under powered priests, wizards, ciphers, etc. in the beta there will be changes.
They need to buff most casters regardless and I'm sure the after the balancing process we end up with a better game where it isn't mathematical optimal having 3 Resolve. Dumping an attribute called Resolve on a priest in a rpg feels just about as bad as dumping strength on a barbarian
But at the end of the day this game just like DnD IS* a game about numbers,but that doesnt mean you still cant RP well. If an attribute does nothing to improve your ability to function in combat in a game where combat is a mainstay, then why are you taking it? Take say DnD 5th edition. Intelligence is pretty much the universal dump stat for anyone that is not a wizard or eldritch knight. Charisma does very little for any fighter, And Wisdom is the exclusive domain of Druids and Clerics but is often left at 10 by all classes because it affects passive perception.
Now lets take a standard 27 point buy to make a War Cleric, all stats start at 8 and stats cost as follows (9-1,10-2,11-3,12-4,13-5,14-7 and 15-9)
Str:15
Dex:8
Con:14
Int:8
Wis:15
Cha:10
Now in this scenario i leveled out my charisma because maybe i wanted to not have a penalty to conversation skills, but beyond that? what actual purpose would it serve me to increase this stat beyond RP? It's not like while mid combat i can use diplomacy to get the wights from eating my arm. in a game where your resources to define your character are finite stat optimization is rather important