In Master Yi's Lore Wuju is a technique of the sword - to my knowledge. In Wukong's Lore, Master Yi trained "Kong in the virtues of discipline, patience and combat, which Yi called Wuju." This is contradictory. The latter description states that Wuju is actually a combat style infused with virtues rather than it strictly being a sword-style.
Therefore, based on this description, Wukong was never technically taught the sword style: "Wuju." But, instead, Yi taught Wukong a generic fighting style which Master Yi called "Wuju."
Furthermore, Wukong doesn't follow the original "Wuju" fighting style - he follows "Wuju Style: Wukong Edition" because in Wukong's Lore it also states that "Yi channeled Kong’s propensity for recklessness and impulsiveness into a lethally swift and surprising fighting style." Now, having an alternate version to the original Wuju may be okay...
**...But Wukong's version of Wuju isn't Wuju at all and shouldn't be named "Wuju"**. Why? Because forcefully bashing things (as seen in-game when he Wukong AAs or Qs) is completely different to Master Yi slicing opponents like butter. Master Yi is more methodical; more precise and more elegant in his fighting style - as seen in-game when Master Yi AAs or Qs.
The differences in "Wuju" between both characters are massive - creating another problem. Something needs to be sorted out.