User blog comment:VeryUnknownFan/The Seasonal Rot of Total Drama Action (Part 2)/@comment-31556666-20141123193559/@comment-27329394-20141124182241

Owen has the advantage of being in way more episodes than Izzy. Anyhow, because Izzy never makes it very far whenever she competes, she is relegated to comic relief only, which really isn't a problem. Sometimes you have a comic relief character with a story and sometimes you don't, and Izzy didn't. But she didn't really have to since she clearly wasn't an important factor this season, given by her early eliminations. Yeah, she was the only one in TDA without an actual story, but most seasons have several contestants who don't really have a story, so this one was an odd exception.

As for development, Izzy developing would still be an odd move. She's crazy and funny, and that's what people like about her. If you give her a meaningful story with development, she probably will not be as crazy and would lose part of what makes her so great. While you could say that Owen + Izzy was a storyline in TDI, it doesn't come with any development and is just made to be entertaining and neither learn anything from it anyway, but that's just fine. I don't see a reason to go off the path that is working for one of the most popular characters in the series.