Master of Chaos!
The other characters do get butt monkey moments (Lillie and Sophocles had screw up moments in this episode), just Ash gets the lion's share of spotlight (hence they don't get as many competent moments as him either). I do agree it should be more balanced, but to do that you need to focus more on the companions in the first place.
Ash being the one to spearhead Zipp healing Garbador (while everyone else was wary around him at first) I thought was a decent redeemer anyway.
Again, episode that focus's on being a pokemon center nurse.
That Garbador moment was the turning point and the reason this filler episode even gotten the 6.5 to me. It isn't a special episode period, but it has enjoyable moments.