Actually, he's proposing something pretty aggressive. . .a
Quadriga is a Roman Sculpture used to commemorate major military victories.
We don't build aggressive public artwork like that anymore. Obama said he didn't want to spike the football. Nova's not just proposing a football spike, but that coupled with "Vengeance and...."etc. It's a football spike and making out with the head cheerleader while fireworks spelling out your name go off, concluding with a fighter jet flyover.
The bolded (a war memorial) is a good place to include (and you KNOW your fellow travelers on the left would NEVER allow this) but... the need is simple.
People need to mourn ritualistically. It's cathartic.
Plus, I think (for some) it's an attempt to reach for the commonality that characterized the first couple days after. We stopped being Left/Right, Red/Blue, etc for a week after 9/11. I think that's what some people reach for in the ritualistic mourning of that day.
And if there's not much else humans (as a species) do, it's ritualistically mourn. I already wear black for work tomorrow, so . . . yeah.
~QC