This is Old Memorial, in Tampa, FL, designed by Steve Smyers.
other clues include:
"About 23 days too late to post" = 23 days ago
was "Memorial" Day in the U.S.
"Ancient Muirfield Event?" = old Memorial (Muirfield Village, that is)
"For a 6-year-old course, it's partly misnamed" = young
course with "Old" in the name.
3rd AOTD by Smyers (previous were Wolf Run and Royce
Brook- West. I originally thought that Blue Heron Pines-East
had been done, hence S.J. = South Jersey)
"Iwo Jima's a little young." = not yet an "old Memorial"
"This one's more aged" a somber aerial shot of the sunken
U.S.S. Arizona in Pearl Harbor and the memorial above it.
"Technically the first AOTD in this metro area, not counting
outer 'burbs (now connected by a nice highway to their front
doors), where 3 close courses were AOTDs." refers to Tampa
area and outer 'burbs courses World Woods' pair and the
course formerly known as Dunes @ Seville.
Home city of reigning champs on gridiron, the "expensive
price for corn"= refers to current NFL champs, the Tampa
Bay Buccaneers. "buccaneer" = expensive price for corn
"No rules, just right" is the slogan of Outback Steakhouse
(had to look that one up), HQ'd in Tampa (knew that).