Its not ideal format, but they got through it. And that's probably why they want to continue.
If they're gonna end it, they want to get back on the original format end it that way. Because this isn't a good way to end it.
People are forgetting the unique and difficult situation they're in this season. They could have easily dropped the ball and called it quits two months ago, when some people were even suggesting to just cancel the season and the show. But they didn't, and even gave the contestants extra screentime. Classy move if you ask me.