>>42473786
>Of what?
Twilight having to cope with how changelings fulfill their dietary requirements. One thing I was hoping for that would've addressed your other complaint was that the rest of the exploration party had been captured by the changelings and were podded. That would answer the other plot hole of what the hell kind of food are they even trying to preserve in the badlands.
The letter saying that the explorers arrived back in Equestria without Twilight dashed all of that, though.