I don't think that Richie did not had nothing to do because:

1. He's a co-writer
2. You can clearly hear him on the "We caaan, our love can move a mountain" and on the shouts between "I am a rock not another grain of sand" and "I wanna be the one you run to when you need a shoulder".

I just think that he didn't give much of a **** while writing this and Shanks finished to destroy this.

Offtopic: I've listened it over 160 times. Stupid sexy Jon.