After hearing about the horses, the riding skill increase should be balanced by some very slight buff. Perhaps a 1k decrease in horse cost for a few of the horses or something...?
In any case, the archers seemed to have gotten a bit too much of a buff, as you've posted. While I'm for balancing the game, I'd rather not be forced to treat my horse like an origami even more.
After taking a break from the game, and hearing about the bump thing getting removed, I'm overall mostly content with the patch. Things will be ironed out in the future, so it'll all work out eventually.