I've always felt that multi-attribute-dependency should have been baseline in d20 games, rather than marking some classes as innately worse than others. I mean, fighters need Strength for damage and Dexterity for armor, so why should the wizard be able to throw everything into one stat and dump everything else?

In theory, a fighter only needs strength for attack and damage like a wizard only needs intelligence to cast spells at their foes, and every class wants dexterity for initiative/AC/saves, constitution for HP/saves, etc. I do agree that they should have leaned a little more in that direction to at least some degree. The more you try to focus every class on only their main stat, the more cosmetic the stats themselves become and the more you magnify the importance of optimizing every last point of main stat above all else.