No. Maybe realisitc even tough i doubt you can command a horse to kick in battle like that.
Shit happens, mistakes too but good cav dont stupidly crash into mobs. And even if you do, i see so many horses that after being stabeed in the face just drive off again or a magic shield absorbing all incoming hits to the legs.
And now you want that the only moment where infantry has the upper hand on cav because of their own mistake, to get away by just pressing a button?
No, just no, if you make poor decisions, you pay the consequence. Is there anyway to make the difference in between a good and bad cav now? (sigh good old lancing pre nerf days...)
Oh and come to think about it, it's not realistic at all, we stab your horse in the face, we slash it's legs, no way that horse is bucking. not like if were trying to capture you alive off your horse, crpg infantry are just madmen on rampage that will kill anything that breathes, and that horse is the first thing going down.
ah also, did you read that thread where chadz is talking about making horses less like go carts?....you should