To be fair though, we only ever see Obi-Wan, Qui-Gon, and Luke use it (influence) in the movies.
Yoda, Mace, Ki-Adi Mundi, Aayla Secura, Qui-Gon, Obi-Wan, Anakin, and Luke are all seen using Move, and Enhance to varying degrees in the movies (most directly the Geonosis battle). We see Luke, Anakin, Yoda, Qui-Gon and Obi-Wan all using Sense as well in the movies, but Influence only gets used as often as other, less common, force powers.
For instance, both Anakin and Luke use Harm (Anakin on Padme, Luke on the Gamorreans in Jabba's Palace) making it nearly as common among Jedi as Influence was, and the fact that Yoda never used it definitely brings it into question.
In fact, one could argue for almost any power to be required for a Jedi (Obi-Wan used Misdirect on screen with the Stormies in the Death Star, the obvious knowledge of Heal/Harm on screen, and the Obi-Wan/Anakin fight as well as the Yoda/Dooku fight all highlighted Protect/Unleash) but at some point you have to draw the line.
That being said, I don't dispute Rakaydos making Influence required - his game, his Jedi, his tenets and I am 100% okay with that.
Edited by Kyla