Me too, I find it awkward. If I were Applejack, I would ask what are they doing here until they reply back aggressively and know they're not being themselves. Until AJ realize it's not them but like their evil twins. XD
And I can't believe it when Cadance managed to pull this off and decide to love him. Wow! Yeah, Shining can be quite a geeky and shy pony, he really have trouble saying Hi to Cadance.
And perhaps start their own kingdom too without resulting in war with other nations. Those cats are probably extinct already, that paradise can be a place for Fluttershy to stay there for a few days.
Sometimes I wonder will they find love among themselves, surely there should be some female changelings and can even start families among themselves just like the ponies did.
We all lol a lot when the Magical Mercenary is released, but still, even haters also claim TF2 is literally dead when that came out. But of course, we all know they're whinny brats for hating ponies when they should hate Spongebob instead.