That would explain why you've been
hurting it nearly every post 
While I enjoyed the episode, I agree about some things you say, you make some valid points

It is a filler episode, it does not move the main plot forward, the events are never mentioned again

It does not introduce any important characters (Buttercup and her warren never appear again, wasted potential

), at least Bark and Tassel (introduced in other filler episodes) make brief appearances in season 3

.
I also agree about the wasted potential, and not just because of Buttercup and gang

Winter lasts several months, but we only get to see a day or two, then they skip straight ahead to spring

Winter in Efrafa could have also been interesting, it probably would have been very different from Winter on WD
