User blog comment:SuperMaxGuy104/Total Drama Elimination Orders My Way (1-5b and RR)/@comment-11883116-20161012023612/@comment-25220122-20161012030232

In my version, yes, Katie and Sadie did perform instead of Bridgette, where the vomiting incident happened beforehand backstage, to which they were both victims of. As a last minute decision before Harold, they were sent up, all still doused in vomit, which heavily effected their performance. As for why they chose Katie over Sadie, same as in The Sucky Outdoors.

Also, in the next challenge, Sadie is upset and slightly angry at her team throughout the episode because of this, which causes her to wander off alone in the woods, and even considers quitting, and gets lost. She tries her best to return to the Bass when she realized Katie wouldn't like this, even if this is the first time being separated from one-another. She finally catches up, but cost the team the challenge, and was thus eliminated.

Sorry for going off about Sadie like that, that's just how I would've pictured it.