They want to send their viewers a shock, and they know we all love Daryl. If it isn't this, it's gonna be something else in the coming weeks. But… I'm pretty sure it's this.

Daryl and carol are in cahoots.

Daryl and carol are in cahoots regarding the body-burning. Why else would Daryl be so insistent that tyreese abandon his watch to accompany them on the med-run? Also, let's be frank. The show isn't going to piss on beloved characters from the comic (ie Carl, glen, etc) to produce some pre-villain villain for this…