So I was with that episode until the song. Completely unnecessary. Total padding. I mean... there's been a lot of mediocre songs this season, and while none of them are Crystal Empire 1&2 bad, very few of them are actually catchy and good. It feels like they're trying to force as many songs out hoping that one will catch on, but that ain't how it works.
But man, I have enjoyed this season so far. I thought I wouldn't, but so far the episodes have been solid, with a couple of absolute gems.