I was talking about the strength of horses being too low on the pathfinder facebook group recently.
Strength in my mind should be highly correlated with weight.
As a game mechanic, I understand why they put the stats for horses and gorillas so low. But I'm not about game mechanics over reality.
One argument is that its more fun to battle dragons and trolls at higher levels as opposed to a gorilla. But I think you can do interesting world design if an ogres takes on a gorilla and draws back a nub.