I wish I'd known there was a debate going on. I would've put my vote towards more challenges, not less.

As it is I have to wait 4+ days for the new challenge, since most of the challenges were finished so quickly they ended in 3 days. Now we have to wait 2 weeks? If people don't want the challenge why don't they just ignore it?? It's not like they won't be repeated at some point, considering the limited number of animals available.
If people are upset that the challenge is too hard because it only goes one week, how does skipping a week help? They're still forced to work on the challenge the same time. It's just a wasted week in between.