Correction & Perspective
"Because Adobe does not maintain a fixed patching schedule for Flash Player, this isn't technically considered an out-of-band band-aid." <-- INCORRECT
YES, Adobe does indeed maintain a fixed patching schedule for Flash Player on the second Tuesday of every month. Adobe established that schedule years ago and have stuck with it.
YES, this IS an out-of-band update patch and therefore should be considered to be URGENT.
Personal perspectives:
A) Real security requires ASAP patching. No excuses! Scheduled patching is merely for convenience at the often dire sacrifice of real security. Thankfully, Adobe has adopted an excellent compromise and uses BOTH strategies, the secure strategy as well as the convenient strategy. Bravo Adobe!
B) The burial of constantly, consistently buggy, insecure Flash can't come fast enough. It should have been murdered THIS year. I'd gladly have added my own knife. Boo Adobe!
C) There was a time when I recommended not allowing Adobe to automatically update their free bug-ware. But I relented. Let Adobe's automatic update feature run. No one has time to keep up with Adobe's eternal mess-of-the-day patching. In the past two years I've run into no problems with Adobe's auto-updating. If I have to use their buggy junk, I'm happy to let them fix it themselves without my having to baby-sit the stuff.