This reminds me of Google's don't-be-evil era, in which they would add easter eggs like this: "did you mean Emacs" if you searched for vi/vim and "did you mean Vim" if you searched for Emacs, "do a barrel roll", etc. It's a bit weird to call the internet of the late 2000s/early 2010s the "old internet", as I was already wistful for the 90s internet then, but yeah. Something charmingly old-internet about this.
67 feels different. The vim/emacs gag feels authentic in the way that someone surrounded by cs/vim/emacs/unix culture would want to stir the pot playfully. "Do a barrel roll" similarly feels like something culturally relevant to whoever implemented it.
No one involved in implementing 67 is of the age group where it was culturally significant so it feels like trying to jump on a bandwagon to feel relevant. And also making the screen shake was the best they could come up with?
Or I'm just looking for excuses to justify my idea that old Google was cool ̄\_(ツ)_/ ̄