Thinking about how Hosea gave Arthur the raven black shire, how Hosea said it was a brute, a bastard, and mean.
But after you've bonded with the horse, you'll find that it's one of the sweetest and bravest horse you've ever had.
In a similar vein, I think about how Hosea said that Arthur was a brute, dumb, and not that intelligent.
But then again, Hosea knows that it's just an act that Arthur puts on, he knows that Arthur has a heart and cares deeply.
In the same way that the shire revealed its true nature with time and care, so did Arthur. Beneath the harsh exterior, Hosea always saw the true goodness in Arthur.