Of course, TWWH does not have strict unit facings so things are more flexible. Also shock cavalry does have 'impact hits' with the possibility to simply break through the formation. OTOH, a giant eagle is not simply overrun, similar to the T9A rules.
Fast cavalry can also be used in TWWH to 'kite' enemy units by moving them while engaged. A unit of Glade riders will lose to Bretonian knights but you definitely can use the Glade riders to control the knights' facing.