I would disagree.
Let us look at the six ability scores and their, at base, derived statistics:
>Strength
Melee Damage, Melee Hit, Carrying Capacity
>Dexterity
Armor, Initiative, Reflex Saving Throws, Ranged Hit
>Constitution
Fortitude Saves, Health
>Intelligence
Skill Ranks
>Wisdom
Will Saving Throws
>Charisma
None
Now with minimal investment these get added to certain groups:
>Dexterity
Melee Hit, Melee Damage
>Charisma
Some Will Saving Throws, Initiative
>Wisdom
Melee Hit
These are through weapon enchantments and feats, rather than class features. Charisma, for having nothing at base has by far the best class feature support.
Now, how would one distribute these to make it fair? One idea is the 5e route and making more saving throws. One is 4e and making it "the best of two" saving throws. Initiative, as it is done now, makes it hard to move around, along with AC, and thus has stayed in place.
One of the biggest offenders in my opinion are skills and skill ranks. Being dumb means you don't know how to climb a tree, due to a lack of skill ranks. It has always struck me as odd that Int governs the total and not instead each gives you ranks for skills governed by that stat.
Through 5e's way of consolidating skills and making it proficiency numbers based on class, not by Int score, does help solve this issue as well.
All in all, Pathfinder is a mess. I think this explantation got away from me.