Having seen the entire run of the 80s show somewhat recently, Adam is at best a bad friend to Cringer and at worst downright abusive.

Like, Cringer has sapience. Full stop. He can talk and everything. Generally he just wants to stay home when Skeletor is up to something. Then Adam rolls by and transforms into He-man and then strips Cringers abnormal intelligence away, turning him into nothing more than a growling beast named Battle Cat that he can ride.