The point of Audino is whatever you want it to be.
It gives great experience, and in the beginning of the game, it's a pretty decent wall.
(+) Also, Audino helps out Nurse Joy In the Anime.
What is the point of Sunkern? What is the point of Wobbuffet?
Every Pokemon has it's own unique movepools and stats, so what is really the point?
There is no point to Pokemon, it's just Pokemon.