ORIGINAL: bluebird2
RSB listed plenty of other possible factors. You simply chose to ignore those possibilities
RSB only listed two other factors , severe winters and a poor mast crop. Severe winters and a poor mast crop will occur periodically whether there are 8 DPSM or 15 DPSM. Under the same conditions the PS deer density will be higher with 15 OWDPSM than with a herd with only 8 OWD PSM. The effects of predation and non-hunting mortality increase with low deer densities so once again RSB was just blowing smoke.
You conveniently left out the fact that the habiata is still recovering and you also ignore predation. Of course, we all know that if Bluebird deems a factor irrelevant, it must be so