Cap'n Kobold
Hero
Hitting an opponent with a bow for a couple of attacks is superior to having to wait a round or so not doing much. Its not as if Barbarians and Paladins get to Rage/Smite on every attack anyway.Paladins and Barbarians are utter naughty word with ranged attacks anyway (and as pointed out, they're the two classes that really benefit from Strength). They have zero class features that assist ranged attacks (other than extra attack, but by the time they're 5th level, they're really trying to close to melee at all costs anyway).
If your Barbarian or Paladin is whipping out a bow, they've already lost. No rage bonus damage, no reckless attack, no smites, no Smite spells, rage ending without a melee attack, no advantage to Strength checks etc etc etc.
Even without class features, their ranged attacks have better damage potential than cantrips in general.
Again. The issue is not the existence of builds that use Strength. It is that dumping Str has few drawbacks for a build for which it is not primary, whereas dumping Dex penalises any build.Rogues and Rangers are the Dex go to guys. Barbarians and Paladins are always better going with Strength.
Fighters can go either way.
Feature; not a bug.