There is a things in the 5e thats is not very logical. On of them is Charisma based Intimidation, what if BG 3 used Home rule for this and it will be STR based?
No, if anything it should be a combination of Charisma and intelligence. Strength has nothing to do with intimidation. So what if you can lift heavy shit, and swing big weapons. Without intelligence and force of personality you won't know how to intimidate anyone and others will perceive your intellectual weakness and just trick you.
The game gives Barbarians specific intimidation dialogue not based on strength but the force of personality brought on by their rages.