I'm curious about the reasoning for this. Is it purely due to not having the time to read through all of them as thoroughly as you'd like, or to help make sure apps don't fall through the cracks (or none of the above)?
Both; those are the same problem, since the biggest danger of not being able to read them all thoroughly enough is that a good one slips through the cracks.
We don't publish application numbers anymore, lest it tempt competitors into a numbers race. Plus the number now would be pretty meaningless, because half the applicants apply in the last two days.