Why does there seem to be little to no nostalgia for The Hangover movies?

The Hangover was a genuine cultural phenomenon from roughly 2009 to 2011, widely praised for reshaping mainstream comedy. At its peak, it was arguably one of the most ubiquitous pieces of pop culture in the world, rivaled only by Family Guy and Lady Gaga, and millennials quoted it as frequently and reflexively as they did Family Guy. In the years that followed, particularly from about 2010 to 2013, nearly every studio comedy attempted to replicate its formula. Although the sequel would later be viewed far more critically, it was just as enthusiastically embraced at the time of its release.

But franchise’s popularity dwindled sharply as 2013 approached, in some cases even before the third film arrived, and that final installment’s underwhelming reception and poor box office only accelerated the downturn. Today, Family Guy is enjoying a notable resurgence and has once again become highly quotable and culturally inescapable, much as it was in the late 2000s and early 2010s.

By contrast, there does not seem to be a comparable revival of affection for The Hangover films, despite their similar comedic sensibilities, their former dominance, and the current wave of nostalgia for edgy comedies of that era. Even Zach Galifianakis has remarked that he doesn’t believe audiences care much about them anymore. This raises the question of whether The Hangover was ultimately a time-bound phenomenon, a cultural fad whose popularity was inseparable from the specific moment in which it emerged. (And before you say that the sequels ruined it's reputation, Ted 2 was received poorly when it came out and flopped, but has been reappraised in the past year)