As most people are well aware, we've never seen the gang have an electric pokemon on the cast since Pikahu all the way until DP when Pachirisu was captured. This continued with Emongla, etc. in BW.
Why do you think the writers didn't want any electric pokemon on the cast for the first 9 seasons? It seems odd that because of Pikachu the writers think other electric types, even other electric rodents, cannot get much screentime.