It should work out better actually, since there isn't appropriate heavy armor in the game. A dex fighter will be able to get 17 AC relatively easily, while a str fighter will be stuck at AC 16. But for a large portion of EA, said strength fighter will be stuck with medium armor or ring mail, giving them an AC of 13-15 depending on their likely low dex score.
Furthermore, the removal of Backstab Advantage makes the feat Great Weapon Master less OP, effectively buffing dex fighters relative to str fighters.
The only(?) downside about dex fighters is that currently dual-wielding doesn't work properly. Last I heard, the game doesn't add your dex modifier to attack rolls with off-hand weapons.
