1) I think there are several people without ideas but who also want to be polymaths. So they would become wrapped up in whichever RFS they chose.
2) I think the applicant pool is getting large enough that it is worth the risk. pg said the applicant pool was eclipsing 1000. The first round had, what, 220? And most of those companies were successful. If I were to apply, I would stick with one of the 5 ideas that I have brewing, and I think a lot of other people would stick with their ideas too.