I also suspect not everyone applying will have over 100K in their account. While it would be heresy for a true-blue FT'er to match anything less, I think the general population will probably be less concerned not getting the maximum miles.
Not that there's hard data to substantiate, but 100K for the average person/regular consumer isn't as easy to obtain... then again, they don't read FT or other mileage earning websites to maximize there awards.