tbh i'm not surprised by the companions' unrealistic point allotment. bethesda couldn't balance/tier weapons well at all, why would skills for npcs be much different
The points hardly affect the companions at all though.
Strength only effects their weight capacity, and melee damage, and they are all balanced well at around 5. Those who are higher have legitimate reasons, such as being a robot, a Super Mutant, or having Power Armour.
Perception is balanced across all of them except Curie, and it's only use is them spotting enemies. Which companions have always been extra good at in Fallout 3/New Vegas. The few with superb Perception have reasons.
Endurance is pretty balanced amongst them, and does effect their hit points.
They have no use for Charisma.
They have no use for Intelligence.
Agility only matters in regards to their sneak, which is mostly covered by the Sneak Perk. They don't really use AP.
Luck has a slight effect on them, but is all pretty balanced around 7/8.
They're all pretty well balanced actually, besides Curie, who is lacking entirely.
Those who have extreme amounts of points have them in useless areas for the most part, or at least make sense.
For example, X6-88 has 20 perception because he is a specially designed hunter Synth, with robot eyes, and Dogmeat has 14, because he has a Dogs keen sense of smell.
Strong has 18 Agility because he is a Super Mutant, and likewise has 24 Strength.
Nick has 18 Intelligence because he has a robot mind and is an experienced detective.
The most peculiar stats are all of Curies (particularly synth-body Curie), Codsworth's 16 Intelligence which is higher than robot-body Curie, and X6-88 having more Endurance than Strong.