It just reduces route flap by doing BGP dampenning plus reducing the
number of peering session you need to maintain. That helps with b/ in
the list above.
As Sean pointed out if your network is imploding, possibly because the
flap is within your own network (you pointed out at NANOG that this
may be the problem for SprintLink and AlterNet), then there is nothing
the RS can do to help you.
Curtis