No matter what the name might have you assume, Cal Kestis from Star Wars Jedi: Fallen Order isn't supposed to be called a Jedi, at least as far as the IP holders were initially concerned. Lucasfilm is hesitant to just add names to the list of surviving Jedi hiding on remote planets.
The Jedi Order is a very exclusive group of highly skilled "Force users" and has dwindled to just a few individuals after the events of Star Wars: Episode III – Revenge of the Sith. The implementation of Order 66 by the former Jedi known as Anakin Skywalker has scattered the Jedi across the galaxy.
While all kinds of additional media ranging from comics, books, video games, animated series and more across both the Legends continuity and current canon added countless Jedi survivors, the story still necessitates that the order be devastated during the rise of the Empire.
Lucasfilm's hesitancy extended to video games as Star Wars Jedi: Fallen Order almost did not have a Jedi as its protagonist. Cal Kestis was supposed to be just a "force user" or someone who can tap the force at a very basic level.
