Ahsoka lived up to fans' high expectations in many ways, delivering dramatic lightsaber conflict, heartwarmingRebels character reunions and the long-awaited return of Grand Admiral Thrawn. The show also delved deep into Ahsoka Tano's past and personality, particularly through the Clone Wars flashbacks of Episode 5. Throughout the show, Ahsoka's strong ties to the Force, her conflicted relationship with the Jedi, and her continued connection with Anakin Skywalker were all explored, culminating in her final transformation into "Ahsoka the White." However, one key figure from her past was left unmentioned: Senator Lux Bonteri.
Source:https://www.cbr.com/why-lux-bonteri-wasnt-in-ahsoka/