[quote=@Legend]
<Snipped quote by whizzball1>

That could have been summed up in less than five minutes. If you want an episode about every character aspect, this season will last for a year. 
[/quote]

You have to keep in mind that technically, all the episodes of the previous seasons are filler episodes if you count this one as one. The first three seasons didn't have an overarching plot. All episodes were just friendship lessons. The fourth season had all friendship lesson episodes except for the key ones (Which were also friendship lesson episodes). It stands to reason that this, along with most other episodes in the season, will be friendship lesson episodes like those of all the other seasons.