So it's a technicality? Technically every bridge bears his symbol, but no, "celebrating" him we are not.

I mean you have to willfully interprete the word "celebrating" as people dancing in the streets out of joy to read the parent's parent comment that way.

In other words: "It's in the background" rather means it's the foundation upon which (as other comments have pointed out) the French Revolution's winning side's narrative rests.