It's striking just how little lightsabers were used in the original trilogy, while prequels has no less than six times the on-screen ignition of lightsabers. Which of course, it should be said that the story in which the prequels take place naturally leads to. That however is irrelevant to the cold hard numbers, and besides, while there could be said to be some inverse correlation between lightsaber ignitions and the reception of the film, it's worth noting how each of the prequels have both an increasing amount of ignitions, as well as an increasing average review score.
In other words; while you could argue that there's a general tendency when look on a per trilogy basis, the reception of each individual film doesn't actually support this.