If you look at the casting on IMDB for the whole *Bewitched" series it's hard to find many people of color casted. Seems a bit hypocritical to this episode's message of inclusion.
Not much of any humor that "Bewitched" is so known for in this episode. There's a token snob spell cast on Darrin (Dick York) by Endora (Agnes Moorehead). Not much focus really on the spell. Creates a minimum amount of humor. But, not much if any.
Wasted appearance by versatile and talented actor Edward Andrews as J. Earl Rockeford who is lead actor in some classic "Twilight Zone" episodes. Harriet E. MacGibbon as bland Jessica Morton nothing like her funny portrayal of Mildred Drysdale in "The Beverly Hillbillies".
I'm rewatching the Endora casts a spell on Darrin (Dick York) episodes. This is the final and without question the worst of those.