It's always the ones you don't expect, isn't it?
Last season, I was surprised to enjoy "28 Pranks Later," a fairly messy episode that was nonetheless made enjoyable by a handful of solid jokes and a decently creepy atmosphere. From the synopsis, it seemed likely to have a mean-spirited, vindictive tone, but unlike the similar "The Mysterious Mare-Do-Well," it used its plot as an excuse to have some funny visual gags and indulge in zombie tropes rather than wasting time humiliating Rainbow Dash for some anachronistic wrong. It was far from perfect, but it was the season's most pleasant surprise.
"It Isn't the Mane Thing About You" is less funny than "28 Pranks Later," but it's every bit as surprising. Despite its inherently awkward premise, the episode almost entirely avoids cringe comedy, and while what gags it does offer are mostly pedestrian, the episode's story structure recalls the show's earliest seasons in a good way. This is a story which gives itself time to breathe, which allows itself to be simple but relatable, which seems to understand the show's original charms. If only it were funnier, it would feel like a genuine return to form. Still, this is surprisingly pleasant!