Some, though the malinline CAK, DSM and STL flights nearly replaced last year's CRJ capacity. OO operated 23,550 departing seats as FL*, while FL+WN offered 23,002 seats to CAK, DSM and STL.
I think the reduced traffic is:
--partly due to lost OO seats
--partly due to much lower load factors on mainline flights to DSM, CAK and perhaps STL...traffic not growing to meet the increased capacity shifted over
--partly due to the year over year loss of DFW
--partly due to other trims, like MCI is 2x vs 3x last October
FL+WN had 1x DEN last October and had 3x this October, so all these other trims overtook that DEN capacity increase to show year-over-year drop.