I just listened to the Frances Ruffelle version again. I've heard both Ruffelle versions (OLC and OBC) many times, and she is still my favorite Eponine. I think Danielle's version was going for this kind of vulnerability, and to be honest, I think she got it, but just screwed up on that one part at the end. It doesn't ruin the performance for me at all, though. I thought it was very well done before and after that one part. The fact that she did the end part in her head voice rather than going for the dramatic "money" belt didn't bother me either. It was a wise choice for her, I think, because her belt doesn't seem to be that well developed yet, and pulling back on that note added some vulnerability to it, I think.
Still, listening to Ruffelle's version again told me something else. I think even more now that Danielle was screwed over by that arrangement. It chopped out all the drama-building parts of the song, so no matter how well anyone sings it (even someone great like Frances Ruffelle), it is difficult to get the power and emotion of the song when it's not allowed to build naturally.
I also really disagree that Lauren, Jenny (especially) or Steph could have done better, especially with that arrangement. The problem was that the song was too long for the time slot, so they had to cut it, and cutting it severely hurt the dramatic potential of the song. I still thought Danielle did really well with it except for that one part.
I'm not reading conspiracy theories into the arrangement, though. I still think Danielle is the one they want, but that song just needed to be cut for time. The problem is that the song really suffers when it is cut, and I don't think they should use it again on a show like this unless they can use the whole song.