You're acting as if the game allows you to adapt
Haven't played the current new patch but before that, an xbow player who knows what he's doing would always be able to out manouvre/outplay heavy infantry 9 times out of 10 because the class is faster and the xbow itself would do stupid amounts of damage completely negating armour not to mention you can shoot around shields and there's not much you can do as inf when all the xbow does is shoot you and run away.
Then just play cav and couch everything because as a cavalryman with a couched lance you're more manouverable than literally anything else, add the fact that there's 0 cooldown on couching the lance. As soon as the inf takes out a spear he gets one tapped by an xbow
All of this makes melee based infantry useless and unfun to play as
"Aiming is a skill" Yeah point and click
I'm speaking from a skirmish perspective but its not as if TDM needs much in the way of balance other than spawns.