This is more of a Peeved rant 2 weeks after the fact, but....
hasbro/DHX throw a perfectly good plot arc out the window in Times are changling. I know it is, inpart, to have a redeem character for the changlings, andd to have a more "diverse" cast of characters. But they really fudged up a potentially great season.
Changlings, in mythology, are faries that are placed in a crib of a stolen child for the parents to raise. We could have had a young changling queen be in place of flurry, and had several episodes where we see flurry do strange things no ponie should be able to do, having it choked up "baby magic" and for the finally, they find out it's a changling and there would be a epic hunt for the real baby, maybe a bit of better peek of changling ruling system and natural habitat, and if they wanted a changling to live in the crystal empire, i am sure they could have squeezed the changling that replaced flurry be "not as evil" as the rest, being a young queen, hell they could explain how changlings work in general and probably slightly more details the thorax did. Hell let them be raised as a sister/brother(pick your pronones) to flurry, and we could explore what a changling queen could do. Maybe find other emotions they can feed off of. They find flurry find and she could get a big-ish bro/sis. Maybe explore/explain gender rules are what you want them to be.
End of my rant, what do you think?