Yeah, I think this post is relevant (again) here:
The timing of it is a bit slow, but I guess they want to nerf/buff in iterations rather than all at once, especially when there are new civs floating around that haven’t quite “settled” into the appropriate win rates. Obviously the 50% bonus resisting Cavaliers is one of those “Frustration points,” and I expect the Sicilians to be buffed before too long.